在求解数学问题的过程中,有些题目设置了陷阱,如果稍不注意就会掉进陷阱,致使解题错误.因此这就要求在解题的过程中一定要注意,努力避开陷阱.一、深入理解概念,巧妙越过陷阱有些数学问题常常围绕着概念设置陷阱,若对这些概念理解不深,就难逃一劫,因此对每一个数学概念都必须深入理解.例1已知l_1:2x+my-2=0,l_2:mx+2y-1=0,并且l_1⊥l_2,则m=__. In the process of solving mathematical problems, some problems set the trap, if you do not pay attention will fall into the trap, resulting in problem-solving errors.Therefore, this requires that in the process of solving problems must pay attention to and strive to avoid the trap.One, In-depth understanding of the concept of clever traversing the trap Some mathematical problems often set the trap around the concept, if these concepts are not deep understanding, it is difficult to escape, so every mathematical concept must be in-depth understanding.Example 1 Known l_1: 2x + my-2 = 0, l_2: mx + 2y-1 = 0, and l_1⊥l_2, then m = __.