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在高中数学中,非常重要的一条主线就是函数。而函数构成的三大要素中,非常重要的一个就是函数的定义域。函数的定义域看起来并不是十分复杂,但是在实际问题解决中,如果没有充分地考虑和仔细地研究,就可能会出现较大的错误,影响到解题结论的正确性,对于学生数学思维品质的提高,也会产生不利的影响。一、定义域的寻找可以直接运用函数关系式众所周知,定义域和对应法则是函数关系式的两个重
In high school mathematics, a very important one is the function of the main line. The function of the three elements, a very important one is the function of the domain. The definition domain of the function does not seem to be very complicated, but in the actual problem solving, if not fully considered and carefully studied, there may be a big mistake, which will affect the correctness of the solution. For the students’ mathematical thinking Quality improvement, will also have a negative impact. First, the search domain can be directly used to find the functional relationship As we all know, the domain and the corresponding law is the function of two heavy