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content/杂七杂八/数学/数学分析3 大逃杀笔记2.md

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@@ -288,3 +288,17 @@ $f在I无穷次可微\implies 有泰勒公式:f(x)=\sum^n_{k=0} \frac{f^{(k)}(x)
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> arctanx和 ln(1+x) 可以用间接展开:先从他们的导数通过逐项积分来获得。
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## 含参量积分
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常义含参积分
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![[Pasted image 20251229195841.png]]
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连续:极限和积分可换序
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可积:累次积分可换序
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可导:积分号下求导可换序 / 导数和积分可换序
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可导下的换序是偏导:
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$$\frac{d}{dx}\left( \int ^{d}_{c} f(x,y)dy \right)=\int ^{d}_{c} \frac{\partial}{\partial x}f(x,y)dy$$
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