Question

Write the general form of ap whose first term and common difference are 'a' and '2' respectively.​

Answer 1

Answer:

General form of ap :

a+d , a+2d , a+3d

=> a + 2 , a +4 , a + 6

Answer 2

Answer:

We have,

first term A=a

Common difference D=?

And n

th

term A

n

=b

Then,

We know that,

A

n

=A+(n−1)D

⇒b=a+(n−1)D

⇒(b−a)=(n−1)D

⇒D=

(n−1)

(b−a)

Hence, this is the answer.