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cot^(-1)""(xy+1)/(x-y)+cot^(-1)""(yz+1)/...

`cot^(-1)""(xy+1)/(x-y)+cot^(-1)""(yz+1)/(y-z)+cot^(-1)""(zx+1)/(z-x)=`

A

0

B

1

C

`cot^(-1)x+cot^(-1)y+cot^(-1)z`

D

None of these

Text Solution

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The correct Answer is:
A
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