sin (+a) + cos 2 TU [= + a))² 2 3πT +(cos (2π - α) — sin (- 2 -a))²

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A: Part 1,Given,            cos2θ=2cos2θ-1

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A:

Q: Use  DeMoivre’s theorem  ( Cos(x) + jSin(x))n = Cos(nx) + jSin(nx) to show that Sin3θ=3sinθ- 4…

A:

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A: To determine the value of the theta.

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Q: ~|J O 1- Cos 2πTX) dx L x (1. 2

A:

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A:

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A: Given:

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A: