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/m
Chapter 35
Exercise 139 (page 328)
1.(a) 4x+c (b)
7 x^2
2
+c
2.(a)
5
4
x^4 +c (b)
3
8
t^8 +c
3.(a)
2
15
x^3 +c (b)
5
24
x^4 +c
4.(a)
2
5
x^5 −
3
2
x^2 +c (b) 2t−
3
4
t^4 +c
5.(a)
3 x^2
2
− 5 x+c (b) 4θ+ 2 θ^2 +
θ^3
3
+c
6.(a)
5
2
θ^2 − 2 θ+θ^3 +c
(b)
3
4
x^4 −
2
3
x^3 +
3
2
x^2 − 2 x+c
7.(a)−
4
3 x
+c (b)−
1
4 x^3
+c
8.(a)
4
5
√
x^5 +c (b)
1
9
√ 4
x^9 +c
9.(a)
10
√
t
+c (b)
15
7
√ (^5) x+c
- (a)
3
2
sin2x+c (b)−
7
3
cos3θ+c
- (a)−6cos
1
2
x+c (b) 18sin
1
3
x+c
- (a)
3
8
e^2 x+c (b)
− 2
15 e^5 x
+c
- (a)
2
3
lnx+c (b)
u^2
2
−lnu+c
- (a) 8
√
x+ 8
√
x^3 +
18
5
√
x^5 +c
(b)−
1
t
+ 4 t+
4 t^3
3
+c
Exercise 140 (page 330)
- (a) 1.5 (b) 0.5 2.(a) 105 (b)− 0. 5
- (a) 6 (b)− 1. 333 4.(a)− 0 .75 (b) 0.833
- (a) 10.67 (b) 0.1667 6.(a) 0 (b) 4
- (a) 1 (b) 4.248 8.(a) 0.2352 (b) 2.638
- (a) 19.09 (b) 2.457 10.(a) 0.2703 (b) 9.099
Exercise 141 (page 334)
- proof 2. proof 3. 32 4. 29 .33Nm
- 37.5 6. 7.5 7. 1
- 1.67 9. 2.67 10. 140m