一道高一數(shù)學(xué)題(抽象函數(shù) 函數(shù)f(x)在(-1,1)上是奇函數(shù),且在(-1,1)上是減函數(shù),若f(1-m)+f(-m)
一道高一數(shù)學(xué)題(抽象函數(shù) 函數(shù)f(x)在(-1,1)上是奇函數(shù),且在(-1,1)上是減函數(shù),若f(1-m)+f(-m)
優(yōu)質(zhì)解答
對(duì)f(1-m)+f(-m)<0變形
f(1-m)<-f(-m)=f(m)根據(jù)奇函數(shù)定義
m<1-m
-1<1-m<1
-1<-m<1
得
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