Question

the first and last terms of an ap are 17 &350 respectively the common difference is 9 how many terms are there and what are there sum
please answer fast​

Answer 1

Answer:

there are 37 terms inbetween 17 and 350 having common difference 9.

Answer 2

Answer:

n=l- a/d +1

n= 350-17/9 +1

n= 333/9 +1

n=38

Sn=n/2 (a+l)

Sn = 17 (17+350)

Sn=7239

hope it helps u