Math, asked by milindc186, 10 months ago

Sin4theata-cos4theata=sin2theata-cos2theata

Answers

Answered by ᎷíssGℓαмσƦσυs
0

sin2×2theta-cos2×2theta

2sin2thetacos2theta-cos^2theta +sin^2theta

cos2theta(sin2theta-cos2theta)+sin2theta(sin2theta + cos2theta)

sin2theta - cos 2ktheta

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