Question

find the general term for the geometric sequence
A1=-2 A2=6
An=

Answer 1

first calculate r
\[r =\frac{ a_{n} }{ a _{n+1} }\]

Answer 2

then apply this formula
\[a _{n} = a _{1} r ^{n-1}\]

Answer 3

An = -2 (-3) ^(n-1)