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zui xiao zheng zhou qi de zheng ming yu qiu fa
Author(s): 
Pages: 18-20
Year: Issue:  3
Journal: High-School Mathematics

Keyword:  最小正周期周期函数主周期定义域证明简便求法取值范围性质常数自然数;
Abstract: <正> 连续周期函数(常数函数除外)必有最小正周期,求出它的最小正周期是有实际意义的:其一,知道了周期函数的最小正周期,就可把握住它的所有周期(见下面性质3);其二,知道了周期函数的最小正周期,就可在小的取值范围内研究函数的性态。对于函数f(x),其定义域为M.如果存在一个非零常数T,x±T∈M,并且对于
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