If sinA +sin^2A=1 then find the value of cos^2+cos^4.

1.	If sinA +sin^2A=1 then find the value of cos^2+cos^4.
Answer» sinA+sin =1sinA=1−sin2AsinA=cos2ANowcos2A+cos2A.cos2A=sinA+sin2A=1\xa0...(given)

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