Question

em relacao a sequencia (3,7,11..) calcule a15=?

Answer 1

(3, 7, 11, 15, 19, 23, 27, 31, 35, 39, 43, 47, 51, 55, 59)
a 15 seria 59.

Answer 2

r=4

a15 = a1+ 14*r
a15 = 3 +14 * 4
a15 = 3 + 56
a15 =59