Write a formula for the general term (the nth term) of the geometric sequence. Thanks?!
1 Answer
Mar 19, 2018
Explanation:
the nth term of a geometric sequence is.
an=arn−1
where a is the first term and r the common difference
here a=12 and
r=a2a1=−11012=−110×21=−15
⇒an=12(−15)n−1