SOLUTION: The sum of the first 30 terms of a geometric sequence is:
18[1-(2/3)^30]
___________ ____
1/3
a. what are the first five terms of the sequence?
b. Estimate the sum of th
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Question 1047528: The sum of the first 30 terms of a geometric sequence is:
18[1-(2/3)^30]
________________
1/3
a. what are the first five terms of the sequence?
b. Estimate the sum of the first one million terms. (How do I do this?)
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
It's quite obvious from the fact that
and r = 2/3
a. , , , , .
b. .
Since 0 < 2/3 < 1, is practically 0.
Thus an estimate of is .
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