If \[{{\tan }^{-1}}x+{{\tan }^{-1}}y+{{\tan }^{-1}}z=\frac{\pi }{2},\]then [Karnataka CET 1996]

If \[{{\tan }^{-1}}x+{{\tan }^{-1}}y+{{\tan }^{-1}}z=\frac{\pi }{2},\]

1.	If \[{{\tan }^{-1}}x+{{\tan }^{-1}}y+{{\tan }^{-1}}z=\frac{\pi }{2},\]then [Karnataka CET 1996]
A.	\[x+y+z-xyz=0\]
B.	\[x+y+z+xyz=0\]
C.	\[xy+yz+zx+1=0\]
D.	\[xy+yz+zx-1=0\]
Answer» E.

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If \[{{\tan }^{-1}}x+{{\tan }^{-1}}y+{{\tan }^{-1}}z=\frac{\pi }{2},\]then [Karnataka CET 1996]

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