Question

Is this sequence geometric -8,-5,-1,4...

Answer 1

Answer: If c1 = -1 and c2 = 4 and r=3

then we can plug in values as numerators

c1 x c2 . r^b c1 x c2 . r^b

= Sb........................... then ..................... wont be required.

1 -r 1/1-r

Where r represents 3 and r can stay 3 it is a geometrical sequence. As c3 value would be unique and so would c4. c5 c6 etc. it is only r and the answer to the first equation each time that keeps it geometric.

Explanation:

Answer 2

The answer is it is not geometric here is why

Explanation:

It is not geometric since there is no common ratio between each term

Hope this will help