(cos 8 A cos 5A-cos 12 A cos 9A)/(sin 8 ...

`(cos 8 A cos 5A-cos 12 A cos 9A)/(sin 8 A cos 5 A +cos 12Asin 9A)=`

A

`tan 2A`

B

`tan 4A`

C

`cot 2A`

D

`cot 4A`

Text Solution

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The correct Answer is:

B

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