计算:根号11-2=3,根号1111-22=33,根号111111-222=333,...,找出一般规律,求根号2N个1-2N个2=?

问题描述:

计算:根号11-2=3,根号1111-22=33,根号111111-222=333,...,找出一般规律,求根号2N个1-2N个2=?

根号2N个1-2N个2=N个3