Question

If the sum of n terms of an A.P. is = 3 + 5n. Write its common difference.​

Answer 1

Answer:

5

Step-by-step explanation:

let the formula for ap is for finding n term s is a+(n-1) d

the sum of n terms of an A.P. is = 3 + 5n.

let we take n=n+1

then by the formula can be wrien as

=a+((n+1)-1) d=a+nd

in the given problem a=3,d=5

then

=3+(n) 5

=3+5n