MCQ
$\sin ^{-1}(1-x)-2 \sin ^{-1} x=\frac{\pi}{2}$, then $x=$ _________.
  • A
    $0, \frac{1}{2}$
  • B
    $0$
  • C
    $1, \frac{1}{2}$
  • D
    $\frac{1}{2}$

Answer

SELF

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