progression | Mathematics | Page 1

glacial sierra Apr 22, 2024, 11:41 PM

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modern slateBOT Apr 22, 2024, 11:41 PM

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stone fractal Apr 23, 2024, 1:08 AM

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It is equivalent to prove that a^2 + c^2 = 2b^2

glacial sierra Apr 23, 2024, 1:10 AM

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I didn't understand

stone fractal Apr 23, 2024, 1:10 AM

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a^2, b^2, c^2 being in AP
is equivalent to b^2 - a^2 = c^2 - b^2,
which is equivalent to a^2 + c^2 = 2b^2

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You can try manipulating the given AP and see if you can arrive at this result

#progression