Mathematics, 24.07.2020 16:01 nati5720

The first and last term of an AP are 1 and 121 respectively. If the sum of the series is 671,find a) the number of terms (n) in the AP b) the common difference between them

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The first and last term of an AP are 1 and 121 respectively. If the sum of the series is 671,find a)...