Proof that .9 repeated equals 1 | Mathematics | Page 1

grave vigil Jul 28, 2024, 9:21 PM

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where did the underlined 1 come from?

hexed robinBOT Jul 28, 2024, 9:21 PM

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warped hull Jul 28, 2024, 9:25 PM

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The formula for the geometric series is for a sum beggining at j=0

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By adding and subtracting 1 to the sum it can be written as a the sum starting from j=0 minus 1

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And from there the sum can be rewritten using the formula for the geometric series

grave vigil Jul 28, 2024, 9:45 PM

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ok thanks

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.close

#Proof that .9 repeated equals 1