If \[{{\sin }^{-1}}(1-x)-2{{\sin }^{-1}}x=\pi /2\], then x equals [Orissa JEE 2005]

\[\left( 0,\,-\frac{1}{2} \right)\]

\[\left( \frac{1}{2},\,0 \right)\]

If \[{{\sin }^{-1}}(1-x)-2{{\sin }^{-1}}x=\pi /2\], then x equals [O

1.	If \[{{\sin }^{-1}}(1-x)-2{{\sin }^{-1}}x=\pi /2\], then x equals [Orissa JEE 2005]
A.	\[\left( 0,\,-\frac{1}{2} \right)\]
B.	\[\left( \frac{1}{2},\,0 \right)\]
C.	{0}
D.	(-1, 0)
Answer» D. (-1, 0)

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If \[{{\sin }^{-1}}(1-x)-2{{\sin }^{-1}}x=\pi /2\], then x equals [Orissa JEE 2005]

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