Question Number 71143 by mathmax by abdo last updated on 12/Oct/19

let A_n =Σ_(k=0) ^n (1/(3k+1)) calculate A_n interms H_n =Σ_(k=1) ^n (1/k)

Commented bymathmax by abdo last updated on 22/Oct/19

this question still insolved for a long time...!