Question

In an arithmetic progression, if an = 2n + 1, then the common
difference of the given progression is
(A)
0
(B) 1
(C)
2
(D) 3.​

Answer 1

Answer:

In an arithmetic progression if a n=2n+1.

Find:

Find the common difference of the given progression.

Know terms:

Term= 2n + 1

1st term = 3

2nd term = 5

Using formula:

★ Common difference = Second term - First term.

Calculations:

⇒ Difference = 5 - 3

⇒ Difference = 2

Therefore, 2 is the common difference.