Question

sin theta + sin ² theta =1
cos^2theta + cos^4 theta =?​

Answer 1

Step-by-step explanation:

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Answer 2

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

$now \\ { \cos( \alpha ) }^{2} + { \cos( \alpha ) }^{4} \\ put \: above \: value \\ \sin( \alpha ) + { \sin( \alpha ) }^{2} \\ 1$