What is the 7th term of the geometric sequence where a1 = –4 and a5 = –1,024?
The common ratio
The possible Real
In either case:
#a_7 = r^2 a_5 = 16*(-1024) = -16384#
So why do I say that
The Complex numbers
#a_7 = r^2 a_5 = (-16)*(-1024) = 16384#