Mathematics, 12.03.2021 07:10, weeblordd

An infinite geometric series has a first term a1=15 and a sum of 45. Explain how you can use the formula S= a1/1-r to find the value of the common ratio. What is the value of r?

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An infinite geometric series has a first term a1=15 and a sum of 45. Explain how you can use the for...