Question

Inserir 8 meios aritméticos entre 2 e 65

Answer 1

an= a1+(n-1).r
an=2+(10-1).r
65=2+9.r
65-2=9r
63=9r
63/9=r
r=7
(2, 9, 16, 23, 30, 37, 44, 51, 58, 65)