sequences and series | Revision Server | Page 1

azure lynx Nov 1, 2023, 10:05 PM

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Help

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,rotate

elfin shadowBOT Nov 1, 2023, 10:07 PM

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stark kindle Nov 1, 2023, 10:12 PM

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So it's a recurring sequence

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It's just going to keep going 3, 0, 1.5, 3, 0, 1.5

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So I'd divide 50 by 3

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,w 50/3

elfin shadowBOT Nov 1, 2023, 10:14 PM

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stark kindle Nov 1, 2023, 10:14 PM

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So do 16*(3+0+1.5)

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Then there's still 2 terms left till 50

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So do an additional 3+0

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You could also do 10*(3+0+1.5+3+0)

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Same outcome

stark kindle Nov 1, 2023, 10:17 PM

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Cause every 5 terms in the series look like that and they're recurring so multiply it by 10 to reach 50 terms

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For b the sum from 1 to 49 is the same as from 1 to 50 cause the last term is 0

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So just multiply the sum by 2

azure lynx Nov 2, 2023, 8:02 AM

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Thanks very much

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Yh this makes sense

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Ty

#sequences and series