Derivando funciones compuestas 1 | Cálculo | Khan Academy en Español

Summary

该视频讲解了如何使用链式法则求导函数 f(x) = cos^3(x) 的导数。首先，视频将函数分解为两部分：外部函数是立方函数，内部函数是 cos(x)。然后，通过链式法则求导，外部函数的导数是 3x^2，内部函数的导数是 -sin(x)，最终将两个导数相乘，得到 f'(x) = -3sin(x)cos^2(x)。整个过程通过多个示例和解释，帮助观众更好地理解链式法则的应用。

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