Question

1) Determine quantos membros tem cada P.A. antes que seus elementos cheguem a 100:
a) {0,10, 20, ...}
b) {1,7, 13, ...}
c) {0,15, 30, ...}
d) {1,3, ...}

Answer 1

a) {0, 10, 20, 30, 40, 50, 60, 70, 80, 90} = 10 membros.

b) {1, 7, 13, 19, 25, 31, 37, 43, 49, 55, 61, 67, 73, 79, 85, 91, 97} = 17 membros.

c) {0, 15, 30, 45, 60, 75, 90} = 7 membros.

d) {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99} = 50 membros.