Question

find the nth term of an ap 1,3,5,7​

Answer 1

Answer:

2n-1

Step-by-step explanation:

Answer 2

The nth term of an AP ($a_{n}$) = 2n - 1

Step-by-step explanation:

The given AP are:

1, 3, 5, 7, ........

Here, first term (a) = 1, common difference(d) = 3 - 1 = 2

To find, the nth term of an AP ($a_{n}$) = ?

We know that,

The nth term of an A.P.

$a_{n}$ = a + (n - 1)d

Put a = 1 and d = 2, we get

$a_{n}$ = 1 + (n - 1)2

⇒ $a_{n}$ = 1 + 2n - 2

⇒ $a_{n}$ = 2n - 1

∴ The nth term of an AP ($a_{n}$) = 2n - 1