Question

The sum to n terms of an arithmetic progression?

Answer 1

Sum = (n/2)*(a+{n-1}d)
Where, n = number of terms
a = first term
d = common difference.

Answer 2

HEYA!!!

Formula for sum of n terms = ( n/2) ( 2a + ( n- 1 ) d )....

n = Number of terms

a = first term

d = common difference. .

HOPE THIS HELPS U @MP #MAHABOOBPASHA #..