Question

what is formula of arithmetic progressions ​

Answer 1

Answer:

The formula for the arithmetic progression sum is explained below: Consider an AP consisting “n” terms. S = n/2 [2a + (n − 1) × d] This is the AP sum formula to find the sum of n terms in series.

Answer 2

Answer:

an = a1 + (n-1)d

Step-by-step explanation:

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