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一、求曲线的切线方程时,忽视点的位置例1.已知曲线(fx)=x3-3x过点A(0,16)作曲线f(x)的切线,求该切线的方程.错解:f′(x)=3x2-2x根据导数的几何意
First, find the tangent equation of the curve, ignore the position of the point Example 1. Known curve (fx) = x3-3xAt point A (0,16) as the curve f (x) of the tangent to find the tangent of the equation. Solution: f ’(x) = 3x2-2x According to the geometric meaning of the derivative