Write the explicit formula for the geometric sequence given the following: a4 = 12, r = 2

The explicit formula is  :

Step-by-step explanation:

Here, in the given GP sequence,

a(4)  = 12, r  = 2

Now, the general term in a  geometric sequence is given as:

Now, here substituting the value of n = 4 , we get:

So, here the first term (a) in the sequence = 1.5

So, the explicit formula is given as :

Hence, the explicit formula is  :