Question

is 16,8,4,2 arithmetic or geometric?

Answer 1

what do you think ?

you get common ratio or common difference
between the terms?

Answer 2

i think it would be geometric.... am i correct?

Answer 3

yeah

Answer 4

what about 2,3,5,8,12? is it arithmetic or geometric? explain.

Answer 5

geometric is correct :)
how did u figure it out?

Answer 6

i think its arithmetic but im not sure why

Answer 7

ugh i dont feel like explaining

Answer 8

for arithmetic, there's a common difference between the terms

Answer 9

like
d =a2-a1 = a3 -a2 = a4-a3 = ....= and so on

Answer 10

so add, 1,2,3,4... etc? so it WOULD be arithmetic

Answer 11

in case of 2,3,5,8,12

are the differences SAME? ?

Answer 12

no?

Answer 13

does 3-2
equal
5-3
equal
8-5

Answer 14

yes, 'no' is correct,
so its not arithmetic

Answer 15

so its geo?

Answer 16

for geometric
there is a common ratio,

r = a2/a1 = a3/a2 = ....and so on

Answer 17

so does
3/2
equal
5/3 ?

Answer 18

ok ur making me confused.

Answer 19

instead of taking differences (for arithmetic), you just take ratios(for geometric)!

Answer 20

so its geometric again eh?

Answer 21

for 2,3,5,8 ....
you don't get common difference
you don't get common ratio too!!
so its neither :)

Answer 22

2,3,5,8,12 you mean?

Answer 23

ok thank hartnn

Answer 24

yes.

and you can look here for some explanation on this topic :)

Tutorial on AP,GP,HP.
http://openstudy.com/study#/updates/503bb2a0e4b007f9003103b0

Answer 25

welcome ^_^

Answer 26

thanks for help goku

Answer 27

goku is always happy to help :D

Answer 28

TODAYS EPISODE GOKU SUMMON THE WATERMELON XD

Answer 29

wanna help me with another question?

Answer 30

nevermind

Answer 31

ask it in a new post :)
if i am not available, then others can help!

Answer 32

you good at science?

Answer 33

ima switch to science