Question

insira cinco meios arimeicos ene 62 e 92

Answer 1

P.A.(62,67,72,77,82,87,92)
N = 7
a 7 = a 1 + (n - 1 ).r
a 7 = 62 + (7 - 1 ).r
92 = 62 + 6 r
92 - 62 = 6 r
30 = 6 r
6 r = 30
r = 30/6
r = 5
a 1 = 62
a 2 = a 1 + r = 62 + 5 = 67
a 3 = 67 + 5 = 72
a 4 = 72 + 5 = 77
a 5 = 77 + 5 = 82
a 6 = 82 + 5 = 87
a 7 = 87 + 5 = 92