# How do you find the derivative of sin^2(2x)?

$4 \sin \left(2 x\right) \cdot \cos \left(2 x\right)$
${\sin}^{2} \left(2 x\right)$ can be rewritten as ${\left(\sin \left(2 x\right)\right)}^{2}$
$2 \sin \left(2 x\right) \cdot \cos \left(2 x\right) \cdot 2$
$4 \sin \left(2 x\right) \cdot \cos \left(2 x\right)$