Question

Interpole 8 meios aritméticos entre 2 e 47

Answer 1

an = 47   a1= 2     n = 10     r=?

47 = 2 + (10-1) r

47 = 2 + 9r

47 - 2 = 9r

45 = 9r
r = 45/9
r=5

{2; [ 7 ; 12; 17; 22; 27; 32; 37; 42;] 47}