Properties of the Derivative
导数的性质
The derivative has certain special properties when applied to combinations of functions.
当导数应用于函数组合时，具有某些特殊性质。
Derivative of the product of two functions
两个函数乘积的导数
If the function f(x) is a product of two functions m(x) and n(x), then the derivative of this product is
如果函数 f(x) 是两个函数 m(x) 和 n(x) 的乘积，那么这个乘积的导数为
Derivative of the sum of two functions
两个函数之和的导数
If the function f(x) is a sum of two functions m(x) and n(x), then the derivative of this sum is simply the sum of the derivatives:
如果函数 f(x) 是两个函数 m(x) 和 n(x) 的和，那么这个和的导数就是这两个导数的和：
Chain rule for differentiation
微分的链式法则
If the function y = f(x) and x=g(z), then the derivative of y with respect to z can be written as a product of derivatives:
如果函数 y = f(x) 且 x = g(z)，则 y 对 z 的导数可以表示为两个导数的乘积：
Derivative concepts
索引导数概念
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