Question

Average value of sin 2theta

Answer 1

Answer:

2 sin theta cos theta

Explanation:

sin 2theta = 2 sin theta cos theta

Reason is

We know that,

Sin ( A+B) = Sin A Cos B + Cos A Sin B

Now you consider both angles are equal.

So,

angle A= angle B

Now you take B = A,

Then,

Sin (A+A) = Sin A Cos A + Cos A Sin A

Therefore, Sin 2A = 2 Sin A Cos A.

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Answer 2

Answer:

answer is attached in the file