设a1,a2,……,an(n>=2)是正实数,且满足a1+a2+……+an
问题描述:
设a1,a2,……,an(n>=2)是正实数,且满足a1+a2+……+an
答
考察当m=2n时的m*a(m) 1.∵0≤ak≤100an,(n≤k≤2n,n=1,2,...) ∴0≤a(2n)≤100a(n+p),(p=1,2,...,n) 其中n+p≤2n ≤2n,n=1,2,...,2.m*a(m) =(2n)*a(2n) =2*a(2n) +2*a(2n) +2*a(2n) +…2*a(2n) ,(有n个2*a(2n) ) ≤...