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State which of the following is equal to...

State which of the following is equal to `"sin" (5 theta)/2 "sin"(3 theta)/2`

A

`1/2(sin 4 theta - sin theta)`

B

`1/2(cos 4 theta - cos theta)`

C

`1/2(cos theta - cos 4 theta)`

D

`1/2(cos theta + cos 4 theta)`

Text Solution

Verified by Experts

The correct Answer is:
C
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