討論串[考古] 94高大
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※ 引述《shallow1112 (小扯)》之銘言:畫圖變換積分順序得. 2 1. ∫ ∫ e^(x^2) dxdy. 0 y/2. 1 2x. = ∫ ∫ e^(x^2) dydx. 0 0. 1 |y = 2x. = ∫ (e^(x^2))(y) | dx. 0 |y = 0. 1. = ∫ (
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令 y = sin(x^2 + 1) , 則 dy = (cos(x^2 + 1))(2x) dx. 1. (x)(cos(x^2 + 1)) dx = --- dy. 2. x = 0 => y = sin(1). x = 1 => y = sin(2). 1 2. ∫ (x)(sin (x^2
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