Basic Engineering Mathematics, Fifth Edition

348 Basic Engineering Mathematics 9.(a) 1 5 (b) 6 (c)E= 1 5 L+6 (d) 12N (e) 65N 10.a= 0. 85 ,b= 12 , 254 .3kPa, 275 .5kPa,280K C ...

Answerstopracticeexercises 349 2.a= 40 ◦,b= 82 ◦,c= 66 ◦, d= 75 ◦,e= 30 ◦,f= 75 ◦ 3.DF, DE 4. 52 ◦ 5. 122. 5 ◦ 6.φ= 51 ◦,x= 161 ...

350 Basic Engineering Mathematics 4.t= 122 ◦ 7 ′and 237◦ 53 ′ 5.α= 218 ◦ 41 ′and 321◦ 19 ′ 6.θ= 39 ◦ 44 ′and 219◦ 44 ′ Exercise ...

Answerstopracticeexercises 351 Chapter 25 Exercise 96 (page 221) 1.p= 105 ◦,q= 35 ◦ 2.r= 142 ◦,s= 95 ◦ 3.t= 146 ◦ Exercise 97 (p ...

352 Basic Engineering Mathematics (b) 146cm^2 (vi) (a) 86.5cm^3 (b) 142cm^2 (vii) (a) 805cm^3 (b) 539cm^2 7.(a) 17.9cm (b) 38.0c ...

Answerstopracticeexercises 353 Exercise 121 (page 284) 11 .11sin(ωt+ 0. 324 ) 2. 8 .73sin(ωt− 0. 173 ) 3.i= 21 .79sin(ωt− 0. 63 ...

354 Basic Engineering Mathematics 3.Mean 4.7225, median 4.72, mode 4.72 4.Mean 115.2, median 126.4, no mode Exercise 126 (page 3 ...

Answerstopracticeexercises 355 Exercise 138 (page 324) −2542A/s 2.(a) 0.16cd/V (b) 312.5V (a)−1000V/s (b)− 367 .9V/s − 1 .635Pa ...

Index Acute angle, 165 Acute angled triangle, 171 Adding waveforms, 278 Addition in algebra, 62 Addition law of probability, 307 ...

Index 357 Elevation, angle of, 191 Engineering notation, 57 Equation of a graph, 135 Equations, 73 circles, 236 cubic, 161 indic ...

358 Index Parabola, 156 Parallel lines, 165 Parallelogram, 219 method, 267 Peak value, 199 Pentagon, 219 Percentage component ba ...

Index 359 Triangle, 171, 219 Triangles, area of, 205 congruent, 175 construction of, 179 properties of, 171 similar, 176 Trigono ...

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