计算∫0+∞e-x2dx;

admin2015-07-22  21

问题 计算∫0+∞e-x2dx;

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答案记I=∫0+∞e-x2dx,则 I2=∫0+∞e-x2dx. ∫0+∞e-x2dx=∫0+∞e-x2dx. ∫0+∞e-y2dy [*]

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