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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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