What is the 10th term of the geometric sequence 3, 9, 27,...?
1 Answer
Mar 18, 2018
Explanation:
#"the nth term of a geometric sequence is"#
#•color(white)(x)a_n=ar^(n-1)#
#"where a is the first term and r the common ratio"#
#r=a_2/a_1=a_3/a_2=......=a_n/a_(n-1)#
#"here "a=3" and "r=9/3=27/9=3#
#rArra_(10)=3xx3^9=3^10=59049#
