Question

intercale 5 meios aritméticos entre -2 e 40

Answer 1

$a_n = a_1 + (n-1).r \\ 40 = -2 + (7 -1).r \\ 40 + 2 = 6r \\ 6r = 42 \\ \\ r = \frac{42}{6} \\ \\ r = 7$

P.A {-2,5,12,19,26,33,40}