Question

find 12th term of AP - 3,-1/2,2......​

Answer 1

use an =a+( n-1)×d formula

Answer 2

Answer:

The correct answer is 49/2.

Step-by-step explanation:

Given:

AP(Arithematic progression) = -3, -1/2, 2 ..

To find the 12th term in AP:

Let us take,

a= -3

d = -1/2

therefore, d = -1/2 –(-3)

                 d= 3-1/2

                 d= 6-1/2

                d=5/2

Let, the 12th term be,

a+ 11d

=-3+ 11x5/2

=-3+55/2

=-6+55

=49/2

Hence, the 12th term will be 49/2.