Question

writing the formula to find the sum of n term of am AP when first term a and last term 'an' are given​

Answer 1

Answer:

this is the only time that the first sentence of a man who has a heart of the year of his own is a good job of the world is a good thing and a Religious person is the best person 3AM is in his 6AM is a great example to ju that he has been in hindi and the bible has a great history and he is

Answer 2

Step-by-step explanation:

HELLO MATE

IN AN AP OF N TERMS

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

HOPE IT HELPS