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(sin 5 alpha-sin3alpha)/(cos 5 alpha+2 c...

`(sin 5 alpha-sin3alpha)/(cos 5 alpha+2 cos 4 alpha+cos 3alpha)=`

A

`cos alpha//2`

B

`cot alpha`

C

`tanalpha//2`

D

None

Text Solution

Verified by Experts

The correct Answer is:
C
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