How do you find the first five terms of the geometric sequence a_1=2 r=-3?
1 Answer
Apr 23, 2017
Explanation:
"the terms in a geometric sequence are"
a,ar,ar^2,ar^3,......,ar^(n-1)
"where r is the common ratio"
r=a_2/a_1=a_3/a_2= ...... =(a_n)/a_(n-1) To obtain a term in the sequence multiply the previous term
by r
rArra_1=2
rArra_2=2xx-3=-6
rArra_3=-6xx-3=18
rArra_4=18xx-3=-54
rArra_5=-54xx-3=162
