題目 Problem 9 (10%). Compute the integral ∫01∫−x−x2x−x2x2+y2 dy dx.\int_{0}^{1}\int_{-\sqrt{x-x^2}}^{\sqrt{x-x^2}}\sqrt{x^2+y^2}\,dy\,dx.∫01∫−x−x2x−x2x2+y2dydx. 解答
