近几年,越来越多的高考压轴题出现零点问题,其形式逐渐多样化,灵活化,考查学生的创造性的思维能力.下面就2015年高考题中的部分零点问题,进行考点分析和用导数解决问题的策略进行探讨.考点1函数零点所在区间的判断例1(山东卷)设函数f(x)=(x+a)·ln x,g(x)=x~2e~x,已知曲线y=f(x)在点(1,f(1))处的切线与直线2x-y=0平行. In recent years, more and more college entrance examination pressure axis problem zero, its form gradually diversified, flexible, to examine the creative thinking ability of students.According to some of the 2015 college entrance examination questions, test analysis and use Derivatives to solve the problem of the strategy to be discussed.Experiment 1 function zero point interval judgment 1 (Shandong volume) set function f (x) = (x + a) · ln x, g (x) = x ~ 2e ~ x, Known curve y = f (x) The tangent at point (1, f (1)) is parallel to the straight line 2x-y = 0.