Question

Find the general term an for the geometric sequence a1=-3 and a2=6?

Answer 1

\[a_{1}=-3 and a_{2}=6\]

Answer 2

use the formula :
an = a1 r^(n-1)

with a1 is given -3 and to get the ratio(r), defined r = a2/a1 = 6/-3 = -2
therefore,
an = a1 * r^(n-1)
an = -3 * (-2)^(n-1)