Question

(4-4)/(4-4) =?

Answer 1

not defined? 0/0?

Answer 2

infinity

Answer 3

http://en.wikipedia.org/wiki/Indeterminate_form

Answer 4

There are several undefined forms in maths, one is this
\[\frac{0}{0}\]
Sevral others
\[\frac{\infty}{\infty}\]
\[{\infty}\times {0}\]
\[1^{\infty}\]
We can't evaluate these