Question

write the sum of the First 1000 positive integer​

Answer 1

Answer:

First number a of the series is 1 and the common difference d is 1. The formula for the sum S of n terms in A.P. is shown below. Substitute 1000 forn, 1 for a and for d in the above equation. Thus, the sum of the first 1000 positive integers is 500500.