Evaluate the following problems using second fundamental theorem: $\int\limits_{0}^{\large\frac{\pi}{4}}2\sin^{2}x \sin 2x dx$

Question

$\begin{array}{1 1} \frac{1}{4} \\ \frac{3}{4} \\ \frac{5}{4} \\ \frac{7}{4} \end{array} $

Comments

What's the formula