现行新教材增加了导数知识,而利用导数求非常规曲线的切线在高考试卷中越来越多,应引起我们高度重视,下面谈谈利用导数解决切线问题的四种常见题型。题型一求过某一点的切线方程.此种题型分为点在曲线上和曲线外两种情况为基本题型.f′(x0)的几何意义就是曲线在点p(x0,f(x0))处 The current new textbook adds derivative knowledge, and the use of derivative to find the tangent to the irregular curve is increasing in the high test volume, and should arouse our great attention. Let’s talk about the four common questions that use the derivative to solve the tangent problem. The tangent equation for a certain type of question is asked. This type of question is divided into two types: the point on the curve and the curve. The basic question is the type of the basic question. The geometric meaning of f’(x0) is that the curve is at the point p(x0,f( X0))