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In a DeltaABC, if cot.(A)/(2)cot.(B)/(2)...

In a `DeltaABC`, if `cot.(A)/(2)cot.(B)/(2)=c`, `cot.(B)/(2)cot.(C )/(2)=a` and `cot.(C)/(2)cot.(A)/(2)=b`, then `(1)/(s-a)+(1)/(s-b)+(1)/(s-c)` equals

A

`0`

B

`1`

C

`2`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
C
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