Question

write the formula for nth term of an A.P and sum of an n term of an A.P?​

Answer 1

Answer:

an= a+(n-1)d

sum of n terms= n/2 [2a+(n-1)d]

Answer 2

Answer:

the formula for the nth term of an AP =an+(n-1) d and the sum of the nth term of an AP= sn=n by 2(a+l)