Which of the following represents a geometric sequence?
i 1/4,1/4,1/4,1/
ii 1/4,1/5,1/6,1/
iii 1/4,1,-4,
iv 1/4,-4,1/4,-
a. i b. ii c. iii d. iv

D

Step-by-step explanation:

There are two types of sequences.One of them is called geometric and the second one is called arithmetic.If you are trying to find ut whether it is a geometric or arithmetic,all you have to do is simple :

If

But if

Now let's have a look at this sequence down below (D)

We can apply our formulas :

-4-1/4=1/4+4

-4.25≠4.25

As you can see it is not an arithnetic sequence.

-4/(1/4)=-4/(1/4)

-16=-16

IV

Step-by-step explanation: