Question

Find the derivative of the following function with respect to x. $y=\frac{sinx}{x}$

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

$y=\frac{sinx}{x}$
$\frac{dy}{dx}=\frac{x\frac{d}{dx}\left(sinx\right)-sinx\left(\frac{dx}{dx}\right)}{x^2}$
=$\frac{xcosx-sinx}{x^2}$