证明1/(n+1)+1/(n+2)+1/(n+3)+……+1/(n+n)

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/02 16:37:32

证明1/(n+1)+1/(n+2)+1/(n+3)+……+1/(n+n)
证明1/(n+1)+1/(n+2)+1/(n+3)+……+1/(n+n)

证明1/(n+1)+1/(n+2)+1/(n+3)+……+1/(n+n)
利用柯西不等式:
∵[1/(n+1)+1/(n+2)+……+1/(2n)]^2