• 试题 ID 26084


$I=\int_0^1 d y \int_y^{\sqrt{y}} f(x, y) d x-\int_1^2 d y \int_{\sqrt{y}}^y f(x, y) d x-\int_2^4 d y \int_{\sqrt{y}}^2 f(x, y) d x$ .
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解析:

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