Answer
(a) $\frac{b}{a}$
(b) $\tan\theta$
Work Step by Step
(a) $\frac{1/a}{1/b}$ = ${\frac{1}{a}}\times{\frac{b}{1}}$ = $\frac{b}{a}$
(b) $\frac{1/\cos\theta}{1/\sin\theta}$ = ${\frac{1}{\cos\theta}}\times{\frac{\sin\theta}{1}}$
= $\frac{\sin\theta}{\cos\theta}$
= $\tan\theta$
