Mathematics

Problem

The area bounded by the curves

y = -\sqrt{-x}

and

x = -\sqrt{-y}

where

x, y \le 0

(A) cannot be determined (B) is

\frac{1}{3}

\frac{2}{3}

(D) is same as that of the figure bounded by the curves

y = \sqrt{-x}

;

x \le 0

and

x = \sqrt{-y}

;

y \le 0