Question

Secant square theta by 2 +Tan square theta by 2

Answer 1

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