Question

If the nth term of ap is 2n-1 ,find the ap

Answer 1

Given : nth term of an ap is 2n-1

Too find : Ap?

Solve :

$\tt{a_n= 2n-1}$

We know that first term of an ap is a

Now, we have to find the first term of an ap

$\tt{a_1=2(1)-1}\\\tt{a_1=1}$

Now, we have to find the second term of an ap

$\tt{a_2=2(2)-1}\\\tt{a_2=3$

Now, we have to find the common difference of the ap

We know that common difference of the ap is,

$\tt{d=a_2-a_1}\\\tt{d=3-1}\\\tt\red{\boxed{\boxed{d=2}}$

Ap is 1, 3, 5, 7,.........