Question

Completeaza sirurile cu inca 3 termeni si gaseste al 20-lea termen :
a) 1,6,11,16,21,... b) 1,3,6,10,15,21,..... c) 1,2,4,5,7,8,10,11,........

Va rog mult, ajutati -ma

Answer 1

a)1,6,11,16,21,26,31,36
b)1,3,6,10,15,21,28,36,45
c)1,2,4,5,7,8,10,11,13,14,16