Question

prove that
$(1 + { \tan(x) }^{2} ) + (1 + \frac{1}{ { \tan(x) }^{2} } ) = \frac{1}{ { \sin(x) }^{2} - \ { \sin(x) }^{4} ) }$

Answer 1

attached here⊕⊕⊕

the answer ..