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If theta is the angle between unit vecto...

If `theta` is the angle between unit vectors `vec(A) and vec(B), " then " ((1- vec(A).vec(B)))/((1 + vec(A).vec(B)))` is equal to

A

`tan^(2) (theta // 2)`

B

`sin^(2) (theta//2)`

C

`cot^(2) (theta//2)`

D

`cos^(2) (theta//2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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