Answer:
nth term of the geometric sequence
an= -12*3^(n-1)
Step-by-step explanation:
First term
a= -12
Second term
ar= -36
-12r=-36
r=-36/-12
=3
Third term
ar^2= -108
-12(3)^2
= -12(9)
= -108
nth term of the geometric sequence
an=ar^(n-1)
= -12*3^(n-1)
