Question

Solve this question​

Answer 1

$({ \sin }^{2} \alpha + { \cos}^{2} \alpha ) ^{2} - 2 { \sin \alpha }^{2} { \cos}^{2} \alpha + \frac{1}{2} ( {{ \sin \alpha }^{2} { \cos \alpha }^{2} })= \\ 1$