SOLUTION: Find the first three terms of the geometric sequence defined by: a1 = −2; an = 3an − 1
Algebra.Com
Question 809728: Find the first three terms of the geometric sequence defined by: a1 = −2; an = 3an − 1
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
an = 3an - 1
a2 = 3a(2 - 1)
a2 = 3a1
a2 = 3(-2)
a2 = -6
---------------------------------------------
an = 3an - 1
a3 = 3a(3 - 1)
a3 = 3a2
a3 = 3(-6)
a3 = -18
---------------------------------------------
Summary:
a1 = -2
a2 = -6
a3 = -18
First three terms are: -2, -6, -18
RELATED QUESTIONS
The sequence is defined recursively. Write the first four terms
a1 = 3; an = 3an-1 + 4 (answered by robertb)
the sequence is defined recursively. Write the first five terms.
a1=2, a2=5; an=an-2 - (answered by ashipm01)
Find the first 40 terms of the sequence defined by A(n+1) = {(1/2)An if An is an odd... (answered by Edwin McCravy)
Write first four terms of the sequence definded by the recursive sequence
a1 = 4 and an (answered by fractalier)
Find the first five terms of the sequence given the following recursive formula: a1=8,... (answered by jim_thompson5910)
suppose A1=2 and An+1=3An+2. Write the first five terms of the sequence. Then write an... (answered by josgarithmetic)
Identify the first five terms of the sequence in which a1 = 1 and an = 3an −1 + 2... (answered by ikleyn)
Find the sum of the first 5 terms of the sequence defined by an = -7(-4)n − 1 for n (answered by stanbon)
Find the first 4 terms of the following recursive sequence, an = an−1 − 10 ,... (answered by tommyt3rd)