已知f(x)是定义在(-∞,+∞)上的减函数,其图象经过A(-4,1)、B(0,-1)两点,则不等式|f(x-2)|<1的解集是______
人气:239 ℃ 时间:2019-08-19 19:48:49
解答
不等式|f(x-2)|<1,即-1<f(x-2)<1,
∵f(x)是定义在(-∞,+∞)上的减函数,其图象经过A(-4,1)、B(0,-1)两点,
∴-4<x-2<0,解得:-2<x<2,
∴|f(x-2)|<1的解集是{x|-2<x<2}.
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