Question

10. If a n =4n+1 , then find the first three terms of the A.P.​

Answer 1

Answer:

The first three terms for $a_{n}=4n+1$ arithmetic progression is 5,9,13.

Step-by-step explanation:

Given,

$a_{n}=4n+1$

Let n be 1

⇒$a_{1}=4(1)+1$

⇒ $a_{1} =5$

The First term is 5.

Let n be 2

⇒ $a_{2}=4(2)+1$

⇒$a_{2}=9$

The Second term is 9.

Let n be 3

$a_{3}=4(3)+1$

$a_{3} =13$

The Third term is 13.