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If sin alpha + sin beta = p "and" cos al...

`If sin alpha + sin beta = p "and" cos alpha + cos beta = q "then the value of " "tan" (alpha-beta)/2 ` will be-

A

`sqrt((4-p^(2)-q^(2))/(p^(2) + q^(2)))`

B

`sqrt((p^(2) + q^(2) - 4)/(p^(2) + q^(2)))`

C

`-sqrt((4-p^(2)-q^(2))/(p^(2)+q^(2)))`

D

`-sqrt((P^(2) +q^(2)-4)/(p^(2) + q^(2)))`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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