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math question
Posted: Tue Nov 04, 2008 12:20 pm
by madah123
Is it there a nth term for this infinite sequence 0,1,8,27,...
i tried n3
but shouldnt sequences only have positive real numbers i must start with 1 right? so i cant have the 0
is there any other way to solve this or is this sequence unsolvable??
Re: math question
Posted: Tue Nov 04, 2008 1:39 pm
by chickenfeather
It wouldn't be n^3 would it? you can start from 0
Re: math question
Posted: Tue Nov 04, 2008 1:47 pm
by madah123
never mind i got it
Re: math question
Posted: Tue Nov 04, 2008 2:00 pm
by iGod
0^3 1^3 2^3 etc
but I guess you already got it :d
Re: math question
Posted: Tue Nov 04, 2008 2:02 pm
by madah123
iGod wrote:0^3 1^3 2^3 etc
but I guess you already got it :d
yes the function it self was easy...
what i didnt know because it wasnt written in my book that i can start from 0
Re: math question
Posted: Tue Nov 04, 2008 2:30 pm
by Tyrax
yeah, you don't just know, so you just ask people in forums.

Re: math question
Posted: Tue Nov 04, 2008 2:31 pm
by Nitro
Tyrax wrote:yeah, you don't just know, so you just ask people in forums.

Whats wrong with asking little help?
I love this maths questions / requests for help, almost always I learn something new .
Re: math question
Posted: Tue Nov 04, 2008 2:32 pm
by Priam
Nitro wrote:Tyrax wrote:yeah, you don't just know, so you just ask people in forums.

Whats wrong with asking little help?
Look at his location field, he's one of those idiots whom have got absolutely nothing usefull to say.
Re: math question
Posted: Tue Nov 04, 2008 2:45 pm
by madah123
sorry but i have an other question my class teacher told us to look about the root of -1 for our new lessons and he said it anew field of numbers or something any hints of what he was talking about as there is no such thing as root of - as far as i know
Re: math question
Posted: Tue Nov 04, 2008 2:50 pm
by iGod
Re: math question
Posted: Tue Nov 04, 2008 3:57 pm
by DonBebek
madah123 wrote:sorry but i have an other question my class teacher told us to look about the root of -1 for our new lessons and he said it anew field of numbers or something any hints of what he was talking about as there is no such thing as root of - as far as i know
yeah, he's right
Complex numbers
We learned that recently in school
Re: math question
Posted: Tue Nov 04, 2008 4:01 pm
by heroo
Nitro wrote:Tyrax wrote:yeah, you don't just know, so you just ask people in forums.

Whats wrong with asking little help?
I love this maths questions / requests for help, almost always I learn something new .
look at his location, must be a 10 yeard old kid -.-
Re: math question
Posted: Tue Nov 04, 2008 4:28 pm
by madah123
thank you very much for your help. it seems that i have big lessons ahead of me to study

. i guess i should work hard
