Question

MEDAL AND FAN!

Is the sequence 2,3,5,8,12 geometric?
explain why or why not.

Answer 1

I dont think it is

Answer 2

well why?

Answer 3

it has no form of geomitry in its sequence

Answer 4

this is what I did ---->

Answer 5

i does not appear to have some pattern of geometric sequence

Answer 6

@eliassaab @GretaKnows

Answer 7

also, is the sequence arithmetic? explain why or why not

Answer 8

to know a common ratio of a geo sequence take the next term divide it by the previous one
to if you did that here i does not work for all terms of this sequence

Answer 9

well that exactly what I did in the drawing above

Answer 10

to know if it is arithmetic
take the next minus the previous
if there a common number then it is if not it is not

Answer 11

well i didn't work so stop and say it is not a geometric seq

Answer 12

the reason is there is no common ratio btw the terms

Answer 13

similarly, you will say there is no common difference btw the term for it to be an arithmetic sequence

Answer 14

consult this link for more info about the subject
http://www.purplemath.com/modules/series3.htm

Answer 15

oh wait nvm I got it now! here is why since all of the differences are different, it is not geometric

Answer 16

Thank You for helping though :D

Answer 17

that work is unnecessary my dear
just say there is no common ratio that's all

Answer 18

there is nothing to your problem beside that

Answer 19

oh I know just that's my work to get there

Answer 20

it didn't need any work, but if that make you happy go for it :)
in math when something is trivial we just stay it is