Question

sum of n terms______​

Answer 1

Answer:

Sum of n terms in AP

n/2[2a + (n – 1)d]

Sum of N Terms Formula:-

The sum of n terms of AP is the sum(addition) of first n terms of the arithmetic sequence. It is equal to n divided by 2 times the sum of twice the first term – ‘a’ and the product of the difference between second and first term-‘d’ also known as common difference, and (n-1), where n is numbers of terms to be added.

Sum of n terms of AP = n/2[2a + (n – 1)d]

This is your answer.

Answer 2

Answer:

sum of n terms is denoted by Sn

Step-by-step explanation:

Sn=n/2(2a+(n-1)d)

or

Sn=n/2(a-l)