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you guan han shu de ji ge wen ti
Author(s): 
Pages: 51-53
Year: Issue:  Z2
Journal: Required Reading for Junior Middle School Students

Abstract: <正>初中代数中的函数是研究两个变量之间的运动变化、相互联系、相互制约的内在关系的,学习函数时,要把握好以下几方面的问题.一、弄清白变量允许值的范围每个函数的自变量都有其确定的取值范围.1.解决某些实际问题时,如果题目给出自变量的取值范围,解题时,只
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