Question

interpole 9 meios aritméticos entre (y-6x e4x+y)

Answer 1

9 + 2 (extremos) = 11 termos
a11 = a1 + 10r
4x+y = y-6x + 10r
10r = 4x+y-y+6x
10r = 10x 
r = x
(y-6x, y-5x, y-4x, y-3x, y-2x, y-x, y , y+x, y+2x, y+3x , y+4x )