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If sinA +sin^2A=1 then find the …

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

Posted by Kiran Kumari 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Ritik Khandelwal 4 years, 6 months ago

sinA+sin =1 sinA=1−sin2A sinA=cos2A Now cos2A+cos2A.cos2A =sinA+sin2A =1 ...(given)

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