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."#
#a_n=ar^(n-1)#
#"where a is the first term and r the common difference"#
#"here "a=1/2" and "#
#r=a_2/a_1=(-1/10)/(1/2)=-1/10xx2/1=-1/5#
#rArra_n=1/2(-1/5)^(n-1)#