QUESTION IMAGE
Question
$$ \frac { d } { d x } ( ln e ^ { 2 x } ) = 2 $$
Step1: 利用对数运算法则化简
根据对数运算法则\(\ln a^b = b\ln a\),则\(\ln e^{2x}=2x\ln e\),因为\(\ln e = 1\),所以\(\ln e^{2x}=2x\)。
Step2: 对化简后的式子求导
对\(y = 2x\)求导,根据求导公式\((ax^n)^\prime=anx^{n - 1}\),这里\(a = 2\),\(n = 1\),则\(y^\prime=(2x)^\prime=2\times1\times x^{1 - 1}=2\)。
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