Determine whether the sequence is arithmetic, geometric, or neither. Give explanation for your answer.
3, 15, 75, 375, ....
Find the next three terms of the geometric sequence.
243, –81, 27, .....
Find the geometric mean of the given pair of numbers:
3, 12
Calculate the missing terms in the geometric sequence, if a1 = 8.1, and a5 = 240.1.
Find a formula for the nth term of the geometric sequence.
r = 2, a1 = 3
Find a formula for the nth term of the geometric sequence:
192, –48, 12, –3, ........
Find a6 of the geometric sequence:
a1 = 4, a3 = 36
Give a rule for the nth term of the geometric sequence.
a3 = 5, a6 = 200
Find the nth term of each geometric sequence.
a1 = , n = 10, r = 2
Find a9 for the geometric sequence.
5, –20, 80, ...
Find a5 of the geometric sequence:
a2 = 48, a3 = 36
The given sequence is geometric. Find y.
3, 12, 48, 5y + 7, ...
Draw the graph of the geometric sequence.
an = 2(6)n – 1
Find the number of terms in the given geometric series.
1 + b + b2 + b3 +.................b10
Find the sum of the given geometric series:
n = 20, r = –2, a1 = 1
Find the sum.
11 + 11 + 11 + ... to 11 terms
Calculate the sum of the six terms of the geometric series.
4 + 12 + ..... + 972.
Find Sn, the sum of the first n terms, for the following geometric series.
a1 = 1944, a4 = 1, r = –1/4
Determine the sum.
Find the sum of the geometric series:
18 + 6 + 2 + ...
Obtain the sum of the infinite geometric series, if it has one.
Write the first three terms of the infinite geometric series that satisfy the condition:
a1 = 6, S = 24
r = –1/2, S = 20
Calculate the sum of the infinite geometric series.
Find the sum of the geometric series: a1 = 5, r = 3/5
250 + 350 + 490 + 686 +...
Calculate the fraction form for the repeating decimal 3.111111....
an= 2(6)n – 1
