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tan alpha + 2 tan 2alpha + 4 tan 4 alpha...

`tan alpha + 2 tan 2alpha + 4 tan 4 alpha + 8 cot 8 alpha = `

A

`sin alpha `

B

`cos alpha `

C

` tan alpha `

D

`cot alpha `

Text Solution

Verified by Experts

The correct Answer is:
D
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