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已知定义在R上的可导函数y=f(x)的导函数为f′(x),满足f′(x)<f(x...
已知定义在R上的可导函数y=f(x)的导函数为f′(x),满足f′(x)<f(x)且y=f(x+1)为偶函数,f(2)=1,则不等式f(x)<ex的解集为 .
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