chiranjibirocker chiranjibirocker 28-04-2021 Mathematics contestada [tex] \frac{1 - \cos {}^{4} ( \beta ) }{ \sin {}^{4} ( { \beta }^{} ) } = 1 + 2 \cot {}^{2} ( \beta ) [/tex]Please Prove This Problem By Doing in LHS side. I try my best but i couldn't solve this. so please solve it.
