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If cos x - sin alpha cot beta sin x = co...

If `cos x - sin alpha cot beta sin x = cos alpha` then the value of `tan(x//2)` is

A

`-tan (alpha/2)cot(beta/2)`

B

`tan (alpha/2)tan(beta/2)`

C

`-cot (alpha/2)tan(beta/2)`

D

`cot (alpha/2)cot (beta/2)`

Text Solution

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The correct Answer is:
A, B
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