If \[\left| {{\sin }^{-1}}x \right|+\left| {{\cos }^{-1}}x \right|=\frac{\pi }{2}\], then x\[\in \]

If \[\left| {{\sin }^{-1}}x \right|+\left| {{\cos }^{-1}}x \right|=\fr

1.	If \[\left\| {{\sin }^{-1}}x \right\|+\left\| {{\cos }^{-1}}x \right\|=\frac{\pi }{2}\], then x\[\in \]
A.	R
B.	\[\left[ -1,1 \right]\]
C.	\[\left[ 0,1 \right]\]
D.	\[\phi \]
Answer» D. \[\phi \]

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If \[\left| {{\sin }^{-1}}x \right|+\left| {{\cos }^{-1}}x \right|=\frac{\pi }{2}\], then x\[\in \]

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