If tan -1 x -tan -1 y -tan -1 z - then x - y - z is equal to-Kerala Engg- 2002-A- 2 x y zB- 1C- 0D- x y z

The correct option is D xyztan^ 1 x + tan^ 1 y + tan^ 1 z = π ⇒ tan^ 1 [ x + y + z xyz/1 xy yz zx ] = π ⇒ x + y + x xyz = 0 ⇒ x + y + x = xyz ...

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Sum of n Terms

If tan -1 x +...

Question

If $t a n^{- 1} x + t a n^{- 1} y + t a n^{- 1} z = π,$ then $x + y + z$ is equal to
[Kerala (Engg.) 2002]

xyz

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2xyz

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