已知函数f(x),x∈R,且f1(x)=2,记f(f(f(x…))=fn(x)【其中n为几就有几个f】,求f4(x)=?
人气:112 ℃ 时间:2019-10-14 06:05:26
解答
由于x∈R无论n取哪 个实数结果都是2
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