題目 9. (10 points) Evaluate ∫01∫1−x29−x2ex2+y2 dydx+∫13∫09−x2ex2+y2 dydx.\int_{0}^{1} \int_{\sqrt{1-x^2}}^{\sqrt{9-x^2}} e^{x^2+y^2}\, dy dx + \int_{1}^{3} \int_{0}^{\sqrt{9-x^2}} e^{x^2+y^2}\, dy dx.∫01∫1−x29−x2ex2+y2dydx+∫13∫09−x2ex2+y2dydx. 解答