Math, asked by killer87, 8 months ago

cos4 theta -sin2 theta is equal to

Answers

Answered by itsbrainlybiswa

0

Answer:here sin5theta=cos4theta

so we will write above eqn as..

sin 5theta=sin90-4theta

so 5theta=90-4theta

i.e 9theta=90

hence theta=90/9=10

Step-by-step explanation:

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