[2+1][2二次+1】【2四次+1】【2八次+1】,【2 2N次方+1】 N的值

问题描述:

[2+1][2二次+1】【2四次+1】【2八次+1】,【2 2N次方+1】 N的值

[2+1][2二次+1][2四次+1][2八次+1],[2 2N次方+1]
=[2-1][2+1][2二次+1][2四次+1][2八次+1],[2 2N次方+1]
=[2二次-1][2二次+1][2四次+1][2八次+1],[2 2N次方+1]
=[2四次-1][2四次+1][2八次+1],[2 2N次方+1]
反复用平方差
=2的2(N+1)次方-1