Find the common ratio, r, in the following geometric sequence. 2, 6, 18, 54, … 3 -3 4 9 ?
1 Answer
May 11, 2018
Explanation:
#"in a geometric sequence the common ratio r is the"#
#"ratio between consecutive terms in the sequence"#
#r=a_2/a_1=a_3/a_2=a_n/a_(n-1)#
#"here "r=6/2=18/6=54/18=3#
