Geometric Series
Pro Problems > Math > Algebra > Functions > Geometric SeriesFeatured Pro Problems
Find the first term, given information about the infinite sum and a partial sum
The common ratio of an infinite geometric series is a third of the first term. The sum is 9/2. What is the first term?
The sum of an infinite geometric series is 10, and the common ratio is 1/5. What is the first term?
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