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Issue:
zui xiao zheng zhou qi de zheng ming yu qiu fa
Author(s):
HAO Junfang
Pages:
18
-
20
Year:
1985
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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