5.3 Change of variables

1.

(a) $4\pi$(b) $4\pi[2\log{2} - \frac{3}{4}]$(c) $${\frac{1}{4}(e - e^{-1})}$$(d) $\pi(e^4 - e)$ (e) $${\frac{2\pi}{3}}$$(f) $${-\frac{7}{60}}$$

7.2

$${\frac{2e}{3} - \frac{8}{3e}}$$