证明lim(1+1/2)×(1+1/2²)×……×(1+1/2^2^(n-1))n→∞存在
问题描述:
证明lim(1+1/2)×(1+1/2²)×……×(1+1/2^2^(n-1))n→∞存在
如题...注意是证明存在
答
证明:∵ lim(n->∞)[(1+1/2)(1+1/2²).(1+1/2^2^(n-1))] =lim(n->∞)[(1-1/2)(1+1/2)(1+1/2²).(1+1/2^2^(n-1))/(1-1/2)] =lim(n->∞)[(1-1/2^2^n)/(1-1/2)] ...