Question

Se da sirul de numere 3,8,13,18
a. descopera al 2016 lea termen

Answer 1

$nr. \ termeni=\frac{ultimul \ termen-primul \ termen}{din \ cat \ in \ cat \ se \ numara}+1$

$2016=\frac{x-3}{5}+1$

$2015=\frac{x-3}{5}$

$10075=x-3$

$x=10078$