If $y = \log(\sin x)$, then $\dfrac{dy}{dx}$ equals:
A$\dfrac{1}{\sin x}$
B$\cos x / \sin^2 x$
C$\cot x$
D$\tan x$
Answer & Solution
Correct answer: C. $\cot x$
$dy/dx = \frac{1}{\sin x} \cdot \cos x = \cot x$.
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