f(2+a)+f(1-2a)大于0
f(a+2)大于-f(1-2a)
奇函數(shù)-f(1-2a)=f(2a-1)
f(a+2)大于f(2a-1)
得如下三式
-2小于a+2小于2
-2小于2a-1小于2
a+2小于2a-1
·已知奇函數(shù)y=f(x)在區(qū)間(-2,2)上單調(diào)遞減,且有f(2+a)+f(1-2a)大于0,求實(shí)數(shù)a的取值范圍
·已知奇函數(shù)y=f(x)在區(qū)間(-2,2)上單調(diào)遞減,且有f(2+a)+f(1-2a)大于0,求實(shí)數(shù)a的取值范圍
數(shù)學(xué)人氣:788 ℃時(shí)間:2020-06-26 03:28:33
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