Question

interpole 6 meios aritmeticos entre -22 e 20

Answer 1

a1=-22
n=6 + 0s dois núemros=8 termos
an=20
razão=?

an=a1+(n-1).r
20=-22+(8-1).r
20=-22+7r
20+22=7r
42=7r
r=42/7
r=6


(-22,-16,10,4,2,8,14,20...)