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∞/∞型,洛必達法則 原式=lim(x趨近於+∞)2e^(x²;)∫e^t²;dt / e^(2x²;) =lim(x趨近於+∞)2∫e^t²;dt / e^(x²;) 用次洛必達 =lim(x趨近於+∞)2e^x²;/ 2xe^(x²;) =lim(x趨近於+∞)1/x =0
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