证明不等式1/(2^2)+1/(3^2)++1/(n^2)

问题描述:

证明不等式1/(2^2)+1/(3^2)++1/(n^2)
证明不等式1/(2^2)+1/(3^2)+···+1/(n^2)

1/(2^2)+1/(3^2)+···+1/(n^2)