Question

one divided by zero is what?

Answer 1

undefined

Answer 2

so what will i write as my answer now? lol

Answer 3

1/0 = undefined

Answer 4

k

Answer 5

This is actually known as division by zero,read more here: http://en.wikipedia.org/wiki/Division_by_zero

Answer 6

hahahha ok i have read it,then i guess i will write my answer as undefined

Answer 7

If you are mentioning a / 0 where a is any number than this is undefined.

If you are referring to 0 / a where a is any number then you always have 0.

The proof of division by zero is actually pretty cool.

Watered down version of the proof of division by zero being undefined.
Suppose that you have a / b = 0 where a and b are any number.
Then a = b(0)
Then a = 0
But then 2a = 0 as well, and this is true for any number.
So it makes no sense to define division by zero.

Answer 8

If you are not in calculus yet, just write undefined. If you are in calc I or II talk about l'hopitals... anything higher and you would probably know what you need to look up.

Answer 9

that's precalculus,the question goes like this
given f(x)=x/(x+1), find f(0)

Answer 10

i meant find f(-1)

Answer 11

Okay, so if you are looking for f(-1), then you plug in -1 wherever there is an x.
-1/(-1+1)

This is -1/0, which is undefined.
Since you are not in calc, there is no other way to do this.

Answer 12

oh! so it's calculus u can solve further?
anyway is just functions

Answer 13

ok using the same given function, find f(x+h)

Answer 14

In this case, you cannot progress any further using calculus. In situations where you have 0/0 or infty/infty you can use l'Hopitals rule and come to a different answer.

Answer 15

f(x+h) would be the difference quotient:
Assuming you are talking about limits, we have:
limit h->0 (x+h)/(x+h)+1
which is lim h->0 (x+h)/(x+h-1)
This just becomes your original function again of x/x+1.
Makes no good sense.

Answer 16

but i just substituted f(x+h) into the given function and got this as my answer
x+h/(x+h+1)

Answer 17

so what's the answer now?

Answer 18

That is the answer. If you are just substituting. I was not sure given the context if you were taking the limit or just substituting the difference quotient (x+h).
If you are just plugging in, then x+h/(x+h+1) is correct.
Cheers!