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Mathematics, 28.04.2021 16:50 XxrazorxX11

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

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Please Prove This Problem By Doing in LHS side. I try my best but i couldn't solve this. so please...
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