Question

sa se studieze convergenta sirului x=1:(1*2)+1:(2*3)+....+1:(n-1)*n

Answer 1

x= 1- 1/2+ 1/2-1/3+ 1/3-1/4+.....+1/(n-1)-1/n= 1- 1/n tinde la 1 cand n tinde la infinit

Noapte buna!