Math, asked by soumyack413, 9 months ago

The sum of first n terms of an arithmetic sequence is given by 3n+2n. find the following a) find common difference? b)find the first term? c) find the sum of first 20 terms?

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Answered by saijanani39644

Answer:

The formula says that the sum of the first n terms of our arithmetic sequence is equal to n divided by 2 times the sum of twice the beginning term, a, and the product of d, the common difference, and n minus 1.

Step-by-step explanation:

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The sum of first n terms of an arithmetic sequence is given by 3n+2n. find the following a) find common difference? b)find the first term? c) find the sum of first 20 terms?​

Answers

The sum of first n terms of an arithmetic sequence is given by 3n+2n. find the following a) find common difference? b)find the first term? c) find the sum of first 20 terms?