已知函数f(x)=那么不等式f(x2-x+1)<12的解集为 .

已知函数f(x)=那么不等式f(x2-x+1)<12的解集为     .

答案

(-12) 【解析】易知f(x)=是奇函数,且在R上单调递增,f(3)=12,所以原不等式等价于x2-x+1<3,解得-1<x<2,即不等式f(x2-x+1)<12的解集为(-12).

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