Math, asked by purshottamabangar03, 3 months ago

If sin2 θ - cos2 θ = 1/2 , what is the value of sin4 θ – cos4 θ ?

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Answered by poonampardhi499

3

Answer:

ANSWER

∵sinθ+sin2θ=1

⇒sinθ=1−sin2θ=cos2θ

Squaring both sides

sin2θ=cos4θ

cos2θ=cos4θ

cos2θ+cos4θ=cos2θ+sin2θ=1

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