If \( \cos ^{-1} x\sin ^{-1} x \) then
(a) \( x0 \)
(b) \( -1x0 \)
(c) \( 0 \leq x\frac{1}{\sqrt...
If \( \cos ^{-1} x\sin ^{-1} x \) then
(a) \( x0 \)
(b) \( -1x0 \)
(c) \( 0 \leq x\frac{1}{\sqrt{2}} \)
(d) \( -1 \leq x\frac{1}{\sqrt{2}} \)
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