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#1 2009-05-30 07:43:16
- asdfdsa
- Guest
prove that when numerator is 0, value is undefined
ok, our teacher has asked us to write a proof that 0/x is undefined.
usually we just say 0/x is just 0, and that x/0 is undefined. but my teacher has asked me to prove that 0/x is undefined, for example 0/10 = undefined. how do i prove this? please help, im really stuck
#2 2009-05-30 09:08:36
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: prove that when numerator is 0, value is undefined
Are you sure that your teacher isn't asking about x/0?
Because 0/x definitely not undefined (except when x=0).
Why did the vector cross the road?
It wanted to be normal.
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#3 2009-05-30 13:12:28
- karney
- Guest
Re: prove that when numerator is 0, value is undefined
0/x=0, x/0 undefined (except in x=0 case). It seems like you meant to say prove undefined when DENOMINATOR=0. You can take 0 and split it up x ways and you just get 0. But you can't take x and split it up 0 ways-undefined.