Math, asked by vamsheenair7781, 8 months ago

Prove the identity sin2θ+ cos 2θ=1 and use it to prove sin 4 θ−cos 4 θ =1−2cos 2 θ

Answers

Answered by devesh4487
1

Step-by-step explanation:

86358 666655

ddddd

66522

655+5585

5999-9998

xxx6589+9999

9988 answer

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