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07-02-2007, 09:50
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Contents
Preface xi
Part 1 Number and Algebra 1
1 Revision of fractions, decimals and
percentages 1
1.1 Fractions 1
1.2 Ratio and proportion 3
1.3 Decimals 4
1.4 Percentages 7
2 Indices and standard form 9
2.1 Indices 9
2.2 Worked problems on indices 9
2.3 Further worked problems on
indices 11
2.4 Standard form 13
2.5 Worked problems on standard
form 13
2.6 Further worked problems on standard
form 14
3 Computer numbering systems 16
3.1 Binary numbers 16
3.2 Conversion of binary to decimal 16
3.3 Conversion of decimal to binary 17
3.4 Conversion of decimal to binary via
octal 18
3.5 Hexadecimal numbers 20
4 Calculations and evaluation of
formulae 24
4.1 Errors and approximations 24
4.2 Use of calculator 26
4.3 Conversion tables and charts 28
4.4 Evaluation of formulae 30
Assignment 1 33
5 Algebra 34
5.1 Basic operations 34
5.2 Laws of Indices 36
5.3 Brackets and factorisation 38
5.4 Fundamental laws and precedence 40
5.5 Direct and inverse proportionality 42
6 Further algebra 44
6.1 Polynomial division 44
6.2 The factor theorem 46
6.3 The remainder theorem 48
7 Partial fractions 51
7.1 Introduction to partial fractions 51
7.2 Worked problems on partial fractions
with linear factors 51
7.3 Worked problems on partial fractions
with repeated linear factors 54
7.4 Worked problems on partial fractions
with quadratic factors 55
8 Simple equations 57
8.1 Expressions, equations and
identities 57
8.2 Worked problems on simple
equations 57
8.3 Further worked problems on simple
equations 59
8.4 Practical problems involving simple
equations 61
8.5 Further practical problems involving
simple equations 62
Assignment 2 64
9 Simultaneous equations 65
9.1 Introduction to simultaneous
equations 65
9.2 Worked problems on simultaneous
equations in two unknowns 65
9.3 Further worked problems on
simultaneous equations 67
9.4 More difficult worked problems on
simultaneous equations 69
9.5 Practical problems involving
simultaneous equations 70
10 Transposition of formulae 74
10.1 Introduction to transposition of
formulae 74
10.2 Worked problems on transposition of
formulae 74
10.3 Further worked problems on
transposition of formulae 75
10.4 Harder worked problems on
transposition of formulae 77
11 Quadratic equations 80
11.1 Introduction to quadratic equations 80
11.2 Solution of quadratic equations by
factorisation 80
11.3 Solution of quadratic equations by
‘completing the square’ 82
11.4 Solution of quadratic equations by
formula 84
11.5 Practical problems involving quadratic
equations 85
11.6 The solution of linear and quadratic
equations simultaneously 87
12 Logarithms 89
12.1 Introduction to logarithms 89
12.2 Laws of logarithms 89
12.3 Indicial equations 92
12.4 Graphs of logarithmic functions 93
Assignment 3 94
13 Exponential functions 95
13.1 The exponential function 95
13.2 Evaluating exponential functions 95
13.3 The power series for ex 96
13.4 Graphs of exponential functions 98
13.5 Napierian logarithms 100
13.6 Evaluating Napierian logarithms 100
13.7 Laws of growth and decay 102
14 Number sequences 106
14.1 Arithmetic progressions 106
14.2 Worked problems on arithmetic
progression 106
14.3 Further worked problems on arithmetic
progressions 107
14.4 Geometric progressions 109
14.5 Worked problems on geometric
progressions 110
14.6 Further worked problems on geometric
progressions 111
14.7 Combinations and permutations 112
15 The binomial series 114
15.1 Pascal’s triangle 114
15.2 The binomial series 115
15.3 Worked problems on the binomial
series 115
15.4 Further worked problems on the
binomial series 117
15.5 Practical problems involving the
binomial theorem 120
16 Solving equations by iterative
methods 123
16.1 Introduction to iterative methods 123
16.2 The Newton–Raphson method 123
16.3 Worked problems on the
Newton–Raphson method 123
Assignment 4 126
Multiple choice questions on chapters 1 to
16 127
Part 2 Mensuration 131
17 Areas of plane figures 131
17.1 Mensuration 131
17.2 Properties of quadrilaterals 131
17.3 Worked problems on areas of plane
figures 132
17.4 Further worked problems on areas of
plane figures 135
17.5 Worked problems on areas of
composite figures 137
17.6 Areas of similar shapes 138
18 The circle and its properties 139
18.1 Introduction 139
18.2 Properties of circles 139
18.3 Arc length and area of a sector 140
18.4 Worked problems on arc length and
sector of a circle 141
18.5 The equation of a circle 143
19 Volumes and surface areas of
common solids 145
19.1 Volumes and surface areas of
regular solids 145
19.2 Worked problems on volumes and
surface areas of regular solids 145
19.3 Further worked problems on volumes
and surface areas of regular
solids 147
19.4 Volumes and surface areas of frusta of
pyramids and cones 151
19.5 The frustum and zone of a sphere 155
19.6 Prismoidal rule 157
19.7 Volumes of similar shapes 159
20 Irregular areas and volumes and mean
values of waveforms 161
20.1 Areas of irregular figures 161
20.2 Volumes of irregular solids 163
20.3 The mean or average value of a
waveform 164
Assignment 5 168
Part 3 Trigonometry 171
21 Introduction to trigonometry 171
21.1 Trigonometry 171
21.2 The theorem of Pythagoras 171
21.3 Trigonometric ratios of acute
angles 172
21.4 Fractional and surd forms of
trigonometric ratios 174
21.5 Solution of right-angled triangles 175
21.6 Angles of elevation and
depression 176
21.7 Evaluating trigonometric ratios of any
angles 178
21.8 Trigonometric approximations for small
angles 181
22 Trigonometric waveforms 182
22.1 Graphs of trigonometric functions 182
22.2 Angles of any magnitude 182
22.3 The production of a sine and cosine
wave 185
22.4 Sine and cosine curves 185
22.5 Sinusoidal form A sinωt š ˛ 189
22.6 Waveform harmonics 192
23 Cartesian and polar co-ordinates 194
23.1 Introduction 194
23.2 Changing from Cartesian into polar
co-ordinates 194
23.3 Changing from polar into Cartesian
co-ordinates 196
23.4 Use of R ! P and P ! R functions on
calculators 197
Assignment 6 198
24 Triangles and some practical
applications 199
24.1 Sine and cosine rules 199
24.2 Area of any triangle 199
24.3 Worked problems on the solution of
triangles and their areas 199
24.4 Further worked problems on the
solution of triangles and their
areas 201
24.5 Practical situations involving
trigonometry 203
24.6 Further practical situations involving
trigonometry 205
25 Trigonometric identities and
equations 208
25.1 Trigonometric identities 208
25.2 Worked problems on trigonometric
identities 208
25.3 Trigonometric equations 209
25.4 Worked problems (i) on trigonometric
equations 210
25.5 Worked problems (ii) on trigonometric
equations 211
25.6 Worked problems (iii) on trigonometric
equations 212
25.7 Worked problems (iv) on trigonometric
equations 212
26 Compound angles 214
26.1 Compound angle formulae 214
26.2 Conversion of a sin ωt C b cos ωt into
R sinωt C ˛) 216
26.3 Double angles 220
26.4 Changing products of sines and cosines
into sums or differences 221
26.5 Changing sums or differences of sines
and cosines into products 222
Assignment 7 224
Multiple choice questions on chapters 17
to 26 225
Part 4 Graphs 231
27 Straight line graphs 231
27.1 Introduction to graphs 231
27.2 The straight line graph 231
27.3 Practical problems involving straight
line graphs 237
28 Reduction of non-linear laws to linear
form 243
28.1 Determination of law 243
28.2 Determination of law involving
logarithms 246
29 Graphs with logarithmic scales 251
29.1 Logarithmic scales 251
29.2 Graphs of the form y D axn 251
29.3 Graphs of the form y D abx 254
29.4 Graphs of the form y D aekx 255
30 Graphical solution of equations 258
30.1 Graphical solution of simultaneous
equations 258
30.2 Graphical solution of quadratic
equations 259
30.3 Graphical solution of linear and
quadratic equations simultaneously
263
30.4 Graphical solution of cubic equations
264
31 Functions and their curves 266
31.1 Standard curves 266
31.2 Simple transformations 268
31.3 Periodic functions 273
31.4 Continuous and discontinuous
functions 273
31.5 Even and odd functions 273
31.6 Inverse functions 275
Assignment 8 279
Part 5 Vectors 281
32 Vectors 281
32.1 Introduction 281
32.2 Vector addition 281
32.3 Resolution of vectors 283
32.4 Vector subtraction 284
33 Combination of waveforms 287
33.1 Combination of two periodic
functions 287
33.2 Plotting periodic functions 287
33.3 Determining resultant phasors by
calculation 288
Part 6 Complex Numbers 291
34 Complex numbers 291
34.1 Cartesian complex numbers 291
34.2 The Argand diagram 292
34.3 Addition and subtraction of complex
numbers 292
34.4 Multiplication and division of complex
numbers 293
34.5 Complex equations 295
34.6 The polar form of a complex
number 296
34.7 Multiplication and division in polar
form 298
34.8 Applications of complex numbers 299
35 De Moivre’s theorem 303
35.1 Introduction 303
35.2 Powers of complex numbers 303
35.3 Roots of complex numbers 304
Assignment 9 306
Part 7 Statistics 307
36 Presentation of statistical data 307
36.1 Some statistical terminology 307
36.2 Presentation of ungrouped data 308
36.3 Presentation of grouped data 312
37 Measures of central tendency and
dispersion 319
37.1 Measures of central tendency 319
37.2 Mean, median and mode for discrete
data 319
37.3 Mean, median and mode for grouped
data 320
37.4 Standard deviation 322
37.5 Quartiles, deciles and percentiles 324
38 Probability 326
38.1 Introduction to probability 326
38.2 Laws of probability 326
38.3 Worked problems on probability 327
38.4 Further worked problems on
probability 329
38.5 Permutations and combinations 331
39 The binomial and Poisson distribution 333
39.1 The binomial distribution 333
39.2 The Poisson distribution 336
Assignment 10 339
40 The normal distribution 340
40.1 Introduction to the normal distribution
340
40.2 Testing for a normal distribution 344
41 Linear correlation 347
41.1 Introduction to linear correlation 347
41.2 The product-moment formula for
determining the linear correlation
coefficient 347
41.3 The significance of a coefficient of
correlation 348
41.4 Worked problems on linear
correlation 348
42 Linear regression 351
42.1 Introduction to linear regression 351
42.2 The least-squares regression lines 351
42.3 Worked problems on linear
regression 352
43 Sampling and estimation theories 356
43.1 Introduction 356
43.2 Sampling distributions 356
43.3 The sampling distribution of the
means 356
43.4 The estimation of population
parameters based on a large sample
size 359
43.5 Estimating the mean of a population
based on a small sample size 364
Assignment 11 368
Multiple choice questions on chapters 27
to 43 369
Part 8 Differential Calculus 375
44 Introduction to differentiation 375
44.1 Introduction to calculus 375
44.2 Functional notation 375
44.3 The gradient of a curve 376
44.4 Differentiation from first
principles 377
44.5 Differentiation of y D axn by the
general rule 379
44.6 Differentiation of sine and cosine
functions 380
44.7 Differentiation of eax and ln ax 382
45 Methods of differentiation 384
45.1 Differentiation of common functions
384
45.2 Differentiation of a product 386
45.3 Differentiation of a quotient 387
45.4 Function of a function 389
45.5 Successive differentiation 390
46 Some applications of differentiation 392
46.1 Rates of change 392
46.2 Velocity and acceleration 393
46.3 Turning points 396
46.4 Practical problems involving maximum
and minimum values 399
46.5 Tangents and normals 403
46.6 Small changes 404
Assignment 12 406
Part 9 Integral Calculus 407
47 Standard integration 407
47.1 The process of integration 407
47.2 The general solution of integrals of the
form axn 407
47.3 Standard integrals 408
47.4 Definite integrals 411
48 Integration using algebraic substitutions
414
48.1 Introduction 414
48.2 Algebraic substitutions 414
48.3 Worked problems on integration using
algebraic substitutions 414
48.4 Further worked problems on integration
using algebraic substitutions 416
48.5 Change of limits 416
49 Integration using trigonometric
substitutions 418
49.1 Introduction 418
49.2 Worked problems on integration of
sin2 x, cos2 x, tan2 x and cot2 x 418
49.3 Worked problems on powers of sines
and cosines 420
49.4 Worked problems on integration of
products of sines and cosines 421
49.5 Worked problems on integration using
the sin substitution 422
49.6 Worked problems on integration using
the tan substitution 424
Assignment 13 425
50 Integration using partial fractions 426
50.1 Introduction 426
50.2 Worked problems on integration using
partial fractions with linear
factors 426
50.3 Worked problems on integration using
partial fractions with repeated linear
factors 427
50.4 Worked problems on integration using
partial fractions with quadratic
factors 428
51 The t =
q
2
substitution 430
51.1 Introduction 430
51.2 Worked problems on the t D tan
2
substitution 430
51.3 Further worked problems on the
t D tan
2
substitution 432
52 Integration by parts 434
52.1 Introduction 434
52.2 Worked problems on integration by
parts 434
52.3 Further worked problems on integration
by parts 436
53 Numerical integration 439
53.1 Introduction 439
53.2 The trapezoidal rule 439
53.3 The mid-ordinate rule 441
53.4 Simpson’s rule 443
Assignment 14 447
54 Areas under and between curves 448
54.1 Area under a curve 448
54.2 Worked problems on the area under a
curve 449
54.3 Further worked problems on the area
under a curve 452
54.4 The area between curves 454
55 Mean and root mean square values 457
55.1 Mean or average values 457
55.2 Root mean square values 459
56 Volumes of solids of revolution 461
56.1 Introduction 461
56.2 Worked problems on volumes of solids
of revolution 461
56.3 Further worked problems on volumes
of solids of revolution 463
57 Centroids of simple shapes 466
57.1 Centroids 466
57.2 The first moment of area 466
57.3 Centroid of area between a curve and
the x-axis 466
57.4 Centroid of area between a curve and
the y-axis 467
57.5 Worked problems on centroids of
simple shapes 467
57.6 Further worked problems on centroids
of simple shapes 468
57.7 Theorem of Pappus 471
58 Second moments of area 475
58.1 Second moments of area and radius of
gyration 475
58.2 Second moment of area of regular
sections 475
58.3 Parallel axis theorem 475
58.4 Perpendicular axis theorem 476
58.5 Summary of derived results 476
58.6 Worked problems on second moments
of area of regular sections 476
58.7 Worked problems on second moments
of areas of composite areas 480
Assignment 15 482
Part 10 Further Number and Algebra 483
59 Boolean algebra and logic circuits 483
59.1 Boolean algebra and switching circuits
483
59.2 Simplifying Boolean expressions 488
59.3 Laws and rules of Boolean algebra
488
59.4 De Morgan’s laws 490
59.5 Karnaugh maps 491
59.6 Logic circuits 495
59.7 Universal logic circuits 500
60 The theory of matrices and determinants
504
60.1 Matrix notation 504
60.2 Addition, subtraction and multiplication
of matrices 504
60.3 The unit matrix 508
60.4 The determinant of a 2 by 2 matrix
508
60.5 The inverse or reciprocal of a 2 by 2
matrix 509
60.6 The determinant of a 3 by 3 matrix
510
60.7 The inverse or reciprocal of a 3 by 3
matrix 511
61 The solution of simultaneous equations by
matrices and determinants 514
61.1 Solution of simultaneous equations by
matrices 514
61.2 Solution of simultaneous equations by
determinants 516
61.3 Solution of simultaneous equations
using Cramers rule 520
Assignment 16 521
Multiple choice questions on chapters 44–61
522
Answers to multiple choice questions 526
Index 527
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Contents
Preface xi
Part 1 Number and Algebra 1
1 Revision of fractions, decimals and
percentages 1
1.1 Fractions 1
1.2 Ratio and proportion 3
1.3 Decimals 4
1.4 Percentages 7
2 Indices and standard form 9
2.1 Indices 9
2.2 Worked problems on indices 9
2.3 Further worked problems on
indices 11
2.4 Standard form 13
2.5 Worked problems on standard
form 13
2.6 Further worked problems on standard
form 14
3 Computer numbering systems 16
3.1 Binary numbers 16
3.2 Conversion of binary to decimal 16
3.3 Conversion of decimal to binary 17
3.4 Conversion of decimal to binary via
octal 18
3.5 Hexadecimal numbers 20
4 Calculations and evaluation of
formulae 24
4.1 Errors and approximations 24
4.2 Use of calculator 26
4.3 Conversion tables and charts 28
4.4 Evaluation of formulae 30
Assignment 1 33
5 Algebra 34
5.1 Basic operations 34
5.2 Laws of Indices 36
5.3 Brackets and factorisation 38
5.4 Fundamental laws and precedence 40
5.5 Direct and inverse proportionality 42
6 Further algebra 44
6.1 Polynomial division 44
6.2 The factor theorem 46
6.3 The remainder theorem 48
7 Partial fractions 51
7.1 Introduction to partial fractions 51
7.2 Worked problems on partial fractions
with linear factors 51
7.3 Worked problems on partial fractions
with repeated linear factors 54
7.4 Worked problems on partial fractions
with quadratic factors 55
8 Simple equations 57
8.1 Expressions, equations and
identities 57
8.2 Worked problems on simple
equations 57
8.3 Further worked problems on simple
equations 59
8.4 Practical problems involving simple
equations 61
8.5 Further practical problems involving
simple equations 62
Assignment 2 64
9 Simultaneous equations 65
9.1 Introduction to simultaneous
equations 65
9.2 Worked problems on simultaneous
equations in two unknowns 65
9.3 Further worked problems on
simultaneous equations 67
9.4 More difficult worked problems on
simultaneous equations 69
9.5 Practical problems involving
simultaneous equations 70
10 Transposition of formulae 74
10.1 Introduction to transposition of
formulae 74
10.2 Worked problems on transposition of
formulae 74
10.3 Further worked problems on
transposition of formulae 75
10.4 Harder worked problems on
transposition of formulae 77
11 Quadratic equations 80
11.1 Introduction to quadratic equations 80
11.2 Solution of quadratic equations by
factorisation 80
11.3 Solution of quadratic equations by
‘completing the square’ 82
11.4 Solution of quadratic equations by
formula 84
11.5 Practical problems involving quadratic
equations 85
11.6 The solution of linear and quadratic
equations simultaneously 87
12 Logarithms 89
12.1 Introduction to logarithms 89
12.2 Laws of logarithms 89
12.3 Indicial equations 92
12.4 Graphs of logarithmic functions 93
Assignment 3 94
13 Exponential functions 95
13.1 The exponential function 95
13.2 Evaluating exponential functions 95
13.3 The power series for ex 96
13.4 Graphs of exponential functions 98
13.5 Napierian logarithms 100
13.6 Evaluating Napierian logarithms 100
13.7 Laws of growth and decay 102
14 Number sequences 106
14.1 Arithmetic progressions 106
14.2 Worked problems on arithmetic
progression 106
14.3 Further worked problems on arithmetic
progressions 107
14.4 Geometric progressions 109
14.5 Worked problems on geometric
progressions 110
14.6 Further worked problems on geometric
progressions 111
14.7 Combinations and permutations 112
15 The binomial series 114
15.1 Pascal’s triangle 114
15.2 The binomial series 115
15.3 Worked problems on the binomial
series 115
15.4 Further worked problems on the
binomial series 117
15.5 Practical problems involving the
binomial theorem 120
16 Solving equations by iterative
methods 123
16.1 Introduction to iterative methods 123
16.2 The Newton–Raphson method 123
16.3 Worked problems on the
Newton–Raphson method 123
Assignment 4 126
Multiple choice questions on chapters 1 to
16 127
Part 2 Mensuration 131
17 Areas of plane figures 131
17.1 Mensuration 131
17.2 Properties of quadrilaterals 131
17.3 Worked problems on areas of plane
figures 132
17.4 Further worked problems on areas of
plane figures 135
17.5 Worked problems on areas of
composite figures 137
17.6 Areas of similar shapes 138
18 The circle and its properties 139
18.1 Introduction 139
18.2 Properties of circles 139
18.3 Arc length and area of a sector 140
18.4 Worked problems on arc length and
sector of a circle 141
18.5 The equation of a circle 143
19 Volumes and surface areas of
common solids 145
19.1 Volumes and surface areas of
regular solids 145
19.2 Worked problems on volumes and
surface areas of regular solids 145
19.3 Further worked problems on volumes
and surface areas of regular
solids 147
19.4 Volumes and surface areas of frusta of
pyramids and cones 151
19.5 The frustum and zone of a sphere 155
19.6 Prismoidal rule 157
19.7 Volumes of similar shapes 159
20 Irregular areas and volumes and mean
values of waveforms 161
20.1 Areas of irregular figures 161
20.2 Volumes of irregular solids 163
20.3 The mean or average value of a
waveform 164
Assignment 5 168
Part 3 Trigonometry 171
21 Introduction to trigonometry 171
21.1 Trigonometry 171
21.2 The theorem of Pythagoras 171
21.3 Trigonometric ratios of acute
angles 172
21.4 Fractional and surd forms of
trigonometric ratios 174
21.5 Solution of right-angled triangles 175
21.6 Angles of elevation and
depression 176
21.7 Evaluating trigonometric ratios of any
angles 178
21.8 Trigonometric approximations for small
angles 181
22 Trigonometric waveforms 182
22.1 Graphs of trigonometric functions 182
22.2 Angles of any magnitude 182
22.3 The production of a sine and cosine
wave 185
22.4 Sine and cosine curves 185
22.5 Sinusoidal form A sinωt š ˛ 189
22.6 Waveform harmonics 192
23 Cartesian and polar co-ordinates 194
23.1 Introduction 194
23.2 Changing from Cartesian into polar
co-ordinates 194
23.3 Changing from polar into Cartesian
co-ordinates 196
23.4 Use of R ! P and P ! R functions on
calculators 197
Assignment 6 198
24 Triangles and some practical
applications 199
24.1 Sine and cosine rules 199
24.2 Area of any triangle 199
24.3 Worked problems on the solution of
triangles and their areas 199
24.4 Further worked problems on the
solution of triangles and their
areas 201
24.5 Practical situations involving
trigonometry 203
24.6 Further practical situations involving
trigonometry 205
25 Trigonometric identities and
equations 208
25.1 Trigonometric identities 208
25.2 Worked problems on trigonometric
identities 208
25.3 Trigonometric equations 209
25.4 Worked problems (i) on trigonometric
equations 210
25.5 Worked problems (ii) on trigonometric
equations 211
25.6 Worked problems (iii) on trigonometric
equations 212
25.7 Worked problems (iv) on trigonometric
equations 212
26 Compound angles 214
26.1 Compound angle formulae 214
26.2 Conversion of a sin ωt C b cos ωt into
R sinωt C ˛) 216
26.3 Double angles 220
26.4 Changing products of sines and cosines
into sums or differences 221
26.5 Changing sums or differences of sines
and cosines into products 222
Assignment 7 224
Multiple choice questions on chapters 17
to 26 225
Part 4 Graphs 231
27 Straight line graphs 231
27.1 Introduction to graphs 231
27.2 The straight line graph 231
27.3 Practical problems involving straight
line graphs 237
28 Reduction of non-linear laws to linear
form 243
28.1 Determination of law 243
28.2 Determination of law involving
logarithms 246
29 Graphs with logarithmic scales 251
29.1 Logarithmic scales 251
29.2 Graphs of the form y D axn 251
29.3 Graphs of the form y D abx 254
29.4 Graphs of the form y D aekx 255
30 Graphical solution of equations 258
30.1 Graphical solution of simultaneous
equations 258
30.2 Graphical solution of quadratic
equations 259
30.3 Graphical solution of linear and
quadratic equations simultaneously
263
30.4 Graphical solution of cubic equations
264
31 Functions and their curves 266
31.1 Standard curves 266
31.2 Simple transformations 268
31.3 Periodic functions 273
31.4 Continuous and discontinuous
functions 273
31.5 Even and odd functions 273
31.6 Inverse functions 275
Assignment 8 279
Part 5 Vectors 281
32 Vectors 281
32.1 Introduction 281
32.2 Vector addition 281
32.3 Resolution of vectors 283
32.4 Vector subtraction 284
33 Combination of waveforms 287
33.1 Combination of two periodic
functions 287
33.2 Plotting periodic functions 287
33.3 Determining resultant phasors by
calculation 288
Part 6 Complex Numbers 291
34 Complex numbers 291
34.1 Cartesian complex numbers 291
34.2 The Argand diagram 292
34.3 Addition and subtraction of complex
numbers 292
34.4 Multiplication and division of complex
numbers 293
34.5 Complex equations 295
34.6 The polar form of a complex
number 296
34.7 Multiplication and division in polar
form 298
34.8 Applications of complex numbers 299
35 De Moivre’s theorem 303
35.1 Introduction 303
35.2 Powers of complex numbers 303
35.3 Roots of complex numbers 304
Assignment 9 306
Part 7 Statistics 307
36 Presentation of statistical data 307
36.1 Some statistical terminology 307
36.2 Presentation of ungrouped data 308
36.3 Presentation of grouped data 312
37 Measures of central tendency and
dispersion 319
37.1 Measures of central tendency 319
37.2 Mean, median and mode for discrete
data 319
37.3 Mean, median and mode for grouped
data 320
37.4 Standard deviation 322
37.5 Quartiles, deciles and percentiles 324
38 Probability 326
38.1 Introduction to probability 326
38.2 Laws of probability 326
38.3 Worked problems on probability 327
38.4 Further worked problems on
probability 329
38.5 Permutations and combinations 331
39 The binomial and Poisson distribution 333
39.1 The binomial distribution 333
39.2 The Poisson distribution 336
Assignment 10 339
40 The normal distribution 340
40.1 Introduction to the normal distribution
340
40.2 Testing for a normal distribution 344
41 Linear correlation 347
41.1 Introduction to linear correlation 347
41.2 The product-moment formula for
determining the linear correlation
coefficient 347
41.3 The significance of a coefficient of
correlation 348
41.4 Worked problems on linear
correlation 348
42 Linear regression 351
42.1 Introduction to linear regression 351
42.2 The least-squares regression lines 351
42.3 Worked problems on linear
regression 352
43 Sampling and estimation theories 356
43.1 Introduction 356
43.2 Sampling distributions 356
43.3 The sampling distribution of the
means 356
43.4 The estimation of population
parameters based on a large sample
size 359
43.5 Estimating the mean of a population
based on a small sample size 364
Assignment 11 368
Multiple choice questions on chapters 27
to 43 369
Part 8 Differential Calculus 375
44 Introduction to differentiation 375
44.1 Introduction to calculus 375
44.2 Functional notation 375
44.3 The gradient of a curve 376
44.4 Differentiation from first
principles 377
44.5 Differentiation of y D axn by the
general rule 379
44.6 Differentiation of sine and cosine
functions 380
44.7 Differentiation of eax and ln ax 382
45 Methods of differentiation 384
45.1 Differentiation of common functions
384
45.2 Differentiation of a product 386
45.3 Differentiation of a quotient 387
45.4 Function of a function 389
45.5 Successive differentiation 390
46 Some applications of differentiation 392
46.1 Rates of change 392
46.2 Velocity and acceleration 393
46.3 Turning points 396
46.4 Practical problems involving maximum
and minimum values 399
46.5 Tangents and normals 403
46.6 Small changes 404
Assignment 12 406
Part 9 Integral Calculus 407
47 Standard integration 407
47.1 The process of integration 407
47.2 The general solution of integrals of the
form axn 407
47.3 Standard integrals 408
47.4 Definite integrals 411
48 Integration using algebraic substitutions
414
48.1 Introduction 414
48.2 Algebraic substitutions 414
48.3 Worked problems on integration using
algebraic substitutions 414
48.4 Further worked problems on integration
using algebraic substitutions 416
48.5 Change of limits 416
49 Integration using trigonometric
substitutions 418
49.1 Introduction 418
49.2 Worked problems on integration of
sin2 x, cos2 x, tan2 x and cot2 x 418
49.3 Worked problems on powers of sines
and cosines 420
49.4 Worked problems on integration of
products of sines and cosines 421
49.5 Worked problems on integration using
the sin substitution 422
49.6 Worked problems on integration using
the tan substitution 424
Assignment 13 425
50 Integration using partial fractions 426
50.1 Introduction 426
50.2 Worked problems on integration using
partial fractions with linear
factors 426
50.3 Worked problems on integration using
partial fractions with repeated linear
factors 427
50.4 Worked problems on integration using
partial fractions with quadratic
factors 428
51 The t =
q
2
substitution 430
51.1 Introduction 430
51.2 Worked problems on the t D tan
2
substitution 430
51.3 Further worked problems on the
t D tan
2
substitution 432
52 Integration by parts 434
52.1 Introduction 434
52.2 Worked problems on integration by
parts 434
52.3 Further worked problems on integration
by parts 436
53 Numerical integration 439
53.1 Introduction 439
53.2 The trapezoidal rule 439
53.3 The mid-ordinate rule 441
53.4 Simpson’s rule 443
Assignment 14 447
54 Areas under and between curves 448
54.1 Area under a curve 448
54.2 Worked problems on the area under a
curve 449
54.3 Further worked problems on the area
under a curve 452
54.4 The area between curves 454
55 Mean and root mean square values 457
55.1 Mean or average values 457
55.2 Root mean square values 459
56 Volumes of solids of revolution 461
56.1 Introduction 461
56.2 Worked problems on volumes of solids
of revolution 461
56.3 Further worked problems on volumes
of solids of revolution 463
57 Centroids of simple shapes 466
57.1 Centroids 466
57.2 The first moment of area 466
57.3 Centroid of area between a curve and
the x-axis 466
57.4 Centroid of area between a curve and
the y-axis 467
57.5 Worked problems on centroids of
simple shapes 467
57.6 Further worked problems on centroids
of simple shapes 468
57.7 Theorem of Pappus 471
58 Second moments of area 475
58.1 Second moments of area and radius of
gyration 475
58.2 Second moment of area of regular
sections 475
58.3 Parallel axis theorem 475
58.4 Perpendicular axis theorem 476
58.5 Summary of derived results 476
58.6 Worked problems on second moments
of area of regular sections 476
58.7 Worked problems on second moments
of areas of composite areas 480
Assignment 15 482
Part 10 Further Number and Algebra 483
59 Boolean algebra and logic circuits 483
59.1 Boolean algebra and switching circuits
483
59.2 Simplifying Boolean expressions 488
59.3 Laws and rules of Boolean algebra
488
59.4 De Morgan’s laws 490
59.5 Karnaugh maps 491
59.6 Logic circuits 495
59.7 Universal logic circuits 500
60 The theory of matrices and determinants
504
60.1 Matrix notation 504
60.2 Addition, subtraction and multiplication
of matrices 504
60.3 The unit matrix 508
60.4 The determinant of a 2 by 2 matrix
508
60.5 The inverse or reciprocal of a 2 by 2
matrix 509
60.6 The determinant of a 3 by 3 matrix
510
60.7 The inverse or reciprocal of a 3 by 3
matrix 511
61 The solution of simultaneous equations by
matrices and determinants 514
61.1 Solution of simultaneous equations by
matrices 514
61.2 Solution of simultaneous equations by
determinants 516
61.3 Solution of simultaneous equations
using Cramers rule 520
Assignment 16 521
Multiple choice questions on chapters 44–61
522
Answers to multiple choice questions 526
Index 527
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