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Prove that: cot^(-1)((ab+1)/(a-b))+cot^(...

Prove that: `cot^(-1)((ab+1)/(a-b))+cot^(-1)((bc+1)/(b-c))+cot^(-1)((ca+1)/(c-a))=0`.

A

0

B

1

C

`pi/4`

D

`4/pi`

Text Solution

Verified by Experts

The correct Answer is:
A
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