$$$a + x$$$ 关于 $$$x$$$ 的导数
您的输入
求$$$\frac{d}{dx} \left(a + x\right)$$$。
解答
和/差的导数等于导数的和/差:
$${\color{red}\left(\frac{d}{dx} \left(a + x\right)\right)} = {\color{red}\left(\frac{da}{dx} + \frac{d}{dx} \left(x\right)\right)}$$应用幂法则 $$$\frac{d}{dx} \left(x^{n}\right) = n x^{n - 1}$$$,取 $$$n = 1$$$,也就是说,$$$\frac{d}{dx} \left(x\right) = 1$$$:
$${\color{red}\left(\frac{d}{dx} \left(x\right)\right)} + \frac{da}{dx} = {\color{red}\left(1\right)} + \frac{da}{dx}$$常数的导数是$$$0$$$:
$${\color{red}\left(\frac{da}{dx}\right)} + 1 = {\color{red}\left(0\right)} + 1$$因此,$$$\frac{d}{dx} \left(a + x\right) = 1$$$。
答案
$$$\frac{d}{dx} \left(a + x\right) = 1$$$A
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