Question

In an AP of 23 terms the first term is 4 and the last term if 72 , find the sum .




Challenge you cant do it as the same sum

Answer 1

Step-by-step explanation:

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. The n stands for the number of terms we are adding together.

Answer 2

Answer:

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