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If tan^-1x + tan^-1y + tan^-1 z = π/2 then the value of xy + yz + zx is equal to which of the following.

+3 votes

asked Mar 28, 2019 in JEE by kratos

If tan-1x + tan-1y + tan-1 z = π/2 then the value of xy + yz + zx is equal to which of the following.

(A) –1

(B) 1

(C) 0

(D) of these

trigonometry
jee
inverse circular functions
jee mains
inverse trigonometric functions
class-12

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1 Answer

+5 votes

answered Apr 8, 2020 by kratos

Best answer

Correct option :

(B) 1

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