Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If tan –1 x + tan –1 y + tan –1 z = π , then 
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+ 
=
Text Solution
Verified by ExpertsThe correct answer is:
B
⇒ tan –1 x + tan –1 y = π – tan –1 z
⇒ x +y/1–xy = – z
⇒ x + y + z = xyz
divide by xyz, we get 1/xy + 1/yz + 1/zx = 1
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