Question

Find the sum of first 'n' terms of an arithmetic progession...

Plzz guys help me...!!​

Answer 1

Answer:

The formula to find the sum of the first n terms of our sequence is 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. The n stands for the number of terms we are adding together.

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Answer 2

Answer:

hope it helps u..........