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If cot^(-1)x+cot^(-1)y+cot^(-1)z=pi/2, t...

If `cot^(-1)x+cot^(-1)y+cot^(-1)z=pi/2`, then x + y + z = _____

A

xy + yz + zx

B

xyz

C

`1/x+1/y+1/z`

D

`(xy+yz+zx)/3`

Text Solution

Verified by Experts

The correct Answer is:
B
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