Question

Determine o 10 termo da pg (3,6,12...)

Answer 1

3 (x 2) = 6
6 (x 2) = 12
12 (x 2) = 24
24 (x 2) = 48
48 (x 2) = 96
96 (x 2) = 192
192 (x 2) = 384
384 (x 2) = 768
....

Answer 2

Q = 6 / 3 = 2
An = A1 * Q^{n-1}
A10 = 3 * 2^{10-1}
A10 = 3 * 2^{9}
A10 = 3 * 512
A10 = 1536