Asked by sanjay

12. IF 1/SinA+1/CosA=1/SinB+1/CosB ,PROVE THAT: Cot{(A+B)/2}=TanA.TanB

7 years ago

Answered by Steve

Hmmm. If 1/SinA+1/CosA=1/SinB+1/CosB it would seem that A=B
I suspect a typo.

7 years ago

Answered by Sharada

Solve

4 years ago

Answered by pratik

not found

3 years ago

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