Mathematics

Problem

x

takes non-positive permissible value, then

\sin^{-1}x =

(a)

\cos^{-1}\sqrt{1-x^2}

(b)

-\cos^{-1}\sqrt{1-x^2}

(c)

\cos^{-1}\sqrt{x^2-1}

(d)

\pi - \cos^{-1}\sqrt{1-x^2}