奇函數(shù)關(guān)于什么對稱?
2020-11-14 16:08:05文/丁雪竹奇函數(shù)圖象關(guān)于原點(diǎn)對稱。奇函數(shù)的定義域必須關(guān)于原點(diǎn)對稱,否則不能成為奇函數(shù);若為奇函數(shù),且在x=0處有意義。奇函數(shù)是指對于一個定義域關(guān)于原點(diǎn)對稱的函數(shù)f(x)的定義域內(nèi)任意一個x,都有f(-x)= - f(x),那么函數(shù)f(x)就叫做奇函數(shù)。

1、在奇函數(shù)f(x)中,f(x)和f(-x)的符號相反且絕對值相等,即f(-x)=-f(x),反之,滿足f(-x)=-f(x)的函數(shù)y=f(x)一定是奇函數(shù)。例如:f(x)=x^(2n-1),n∈Z。(f(x)等于x的2n-1次方,n屬于整數(shù))
2、奇函數(shù)圖象關(guān)于原點(diǎn)(0,0)中心對稱。
3、奇函數(shù)的定義域必須關(guān)于原點(diǎn)(0,0)對稱,否則不能成為奇函數(shù)。
4、若F(X)為奇函數(shù),定義域中含有0,則F(0)=0。
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