Question

Interpole dez meios aritméticos entre -12 e 65.

Answer 1

an=a1+(n-1).r
65= -12+(12-1).r
65= -12+11.r
65+12=11r
77=11r
r=77/11
r=7
(-12, -5, 2, 9, 16, 23, 30, 37, 44, 51, 58, 65)