概率在高考题目当中以证明题的形式来考察的情况比较少见,同学们初次遇到证明不易解决,但是只要在平时注重掌握数学思想,遇到这种新题型可以大胆运用各种思想方法配合我们思考,很可能会得到问题的简便解法.以下这道高考题便是运用函数思想来解题的一个典型例子. Probability among the subjects in the entrance exam to prove the form of the problem is relatively rare, the students first encountered proof is not easy to solve, but as long as the usual pay attention to grasp the mathematical thinking, encounter this new type of questions can be bold use of various ways of thinking with We think, it is likely to get a simple solution to the problem. The following road test is the use of function theory to solve a typical example.