证明1+1/(√2)+1/(√3)+……+1/(√n)
问题描述:
证明1+1/(√2)+1/(√3)+……+1/(√n)
答
证明:因为 1/(√n)=所以
1/(√2)1/(√3)1/(√4)……………………
1/(√n)相加得1/(√2)+1/(√3)+……+1/(√n)所以1+1/(√2)+1/(√3)+……+1/(√n)证毕!