How do you find the indicated term for the geometric sequence #a_3=32#, r=-0.5, n=6?
1 Answer
Jul 20, 2017
Explanation:
#"the nth term of a geometric sequence is"#
#•color(white)(x)a_n=ar^(n-1)#
#"we need to find a the first term"#
#rArra_3=a(-0.5)^2=32#
#rArra=32/(-0.5)^2=128#
#rArra_6=128xx(-0.5)^5=-4#
