学生在解数学题时,常会碰到一类比较大小的习题,这类题常会出现在幂函数,指数函数,对数函数及三角函数中。题目拿到手后,学生可能会无从下手,但只要掌握其中的方法,问题就会迎刃而解,下面就一些常见题型及其解法作如下分析。一、首先判断是何种函数,然后利用函数的单调性比较大小 Students in the solution of mathematical problems, often encounter a class of relatively small exercises, such problems often appear in the power function, exponential function, logarithmic function and trigonometry. After the subject gets the hand, the student may not be able to start, but as long as one of the methods, the problem will be solved, the following some common problems and their solutions for the following analysis. First, first determine what kind of function, and then use the monotonicity of the function size