Question

inserir doze meios aritmeticos entre 60 e -5

Answer 1

an = a1 + (n-1)r

60 = -5 + (14 - 1) r

60 = -5 + 13r

60 + 5 = 13r

65 = 13r

r = 65/13

r = 5

{-5 [ 0;5;10;15;20;25;30;35;40;45;50;55 ] 60}