Printable View
....or does it?
Some maths fun for you lot....
So come on clever pants, what's wrong? :DCode:x = y multiply by x:
x² = xy subtract y²:
x²-y² = xy-y² factorise:
(x+y)(x-y) = y(x-y) cancel common factor:
x+y = y but x=y so:
y+y = y
2y = y
2 = 1
:cool:
Dan
You can't divide by zero in the "cancel common factor" bit. (x-y = 0).
Tada!
Toot
Toot wins the prize :)
And the prize is winning.
:cool:
Dan
Yeah, If you could divide by zero, anything could equal anything:
Code:3 * 0 = 5 * 0 Cancel Common Factor
3 = 5
This is why dividing by zero is not allowed.
And that's where Calculas fits in!
Hmm, I thought calculus was about finding slopes and areas under graphs. or is calculas a different subject
There's also a bit of dividing by zero in calculas.
picture a slope like this
It's left undefined because of the 0.Code:
|
|
|
|
completely vertical.
m = 2
---
0