Question

interpole 8 meios aritméticos entre 2 e 47.

Answer 1

$a1=2\\ an=47\\ n=10\\ \\ an=a1+(n-1)r\\ 47=2+(10-1)r\\ 47=2+9r\\ 47-2=9r\\ 45=9r\\ \frac { 45 }{ 9 } =r\\ 5=r\\ \\ P.A=\{ 2,7,12,17,22,27,32,37,42,47\}$