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cot theta - tan theta - 2 tan 2theta- 4 ...

`cot theta - tan theta - 2 tan 2theta- 4 tan 4theta=`

A

`4cot8theta-tan6theta`

B

`cot 8theta + tan 3theta`

C

`cot8theta+ cot6theta`

D

`8cot8theta`

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The correct Answer is:
D
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