Math, asked by mehermalhotra3127, 10 months ago

Cos^4=1/8(cos4theta+4cos2theta+3)

Answers

Answered by chaitali15379

0

Answer:

Wrong question. Cos^4 of what???

Answered by jksangani147

0

Answer:

-1

Step-by-step explanation:

Explanation: We need. (a+b)2=a2+2ab+b2. cos2x=2cos2x−1. cos4x=2cos2(2x)−1.

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