Question

Find the first six terms of the sequence.
\[a_{1}=4, a _{n}=2 \times a _{n-1}\]
how do i go about solving this?

Answer 1

in the general expression put n =2
a2 = 2 * (a1) = 2*4 = 8
similarly you can find a3 a4 and so on
clear?

Answer 2

umm im unclear on how you got a2 = 2 * (a1) = 2*4 = 8

Answer 3

could you elaborate?

Answer 4

an = 2×an−1(look above in the question it`s given)
so put n = 2 in this equation
and tell me what you get?

Answer 5

2 x 4-1?

Answer 6

no!!

Answer 7

clear??