Question

How do you find the derivative of $y=(lnx{)}^2$?

Answer 1

$\frac{dy}{dx}=\frac{2lnx}{x}$
Explanation:
$y=(lnx{)}^2$
Use the Chain Rule:
$\frac{dy}{dx}=2\left(lnx\right)\left(\frac{1}{x}\right)$
$\frac{dy}{dx}=\frac{2lnx}{x}$