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Mathematics, 27.01.2021 14:00 miya214

Awarding 90 Points The 12th term of an arithmetic series is 62.
The 20th term of the series is 102.
Find the sum of the first 20 terms of this arithmetic series.

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Awarding 90 Points The 12th term of an arithmetic series is 62.
The 20th term of the series i...
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