Question

insira seis meios aritméticos entre -2 e -37

Answer 1

n = 6 + 2 = 8

a1 = - 2

an = - 37

an = a1 + (n-1).r 

- 2 + (8-1).r = - 37 ==> - 2 - 7r = - 37

7r = - 37 + 2 ==> 7r = - 35 ==> r = - 5
====================================================
( - 2, - 7, - 12, - 17, - 22, - 27, - 32, - 37 )