Question

0/0=2 proof

Answer 1

=100-100/100-100

=10*10 - 10*10/10*10 - 10*10

=10^2 - 10^2/10(10-10)

=(10+10)(10-10)/10(10-10)

=(10+10)/10

=20/10

=2

Answer 2

Fourth line, you divide by 0.

Answer 3

hmm, 4th line is actually ok

Answer 4

a^2 - b^2 = (a+b)(a-b)

Answer 5

\(\bf \cfrac{(10+10)\cancel{(10-10)}}{10\cancel{(10-10)}}\\

\cfrac{10+10)}{10}\)

so that's ok

Answer 6

yes

Answer 7

well, the short answer will be, the procedural part is correct, the answer is extraneous

Answer 8

I'm losing faith in math and every we know about the universe

xD

Answer 9

everything*

Answer 10

@jdoe0001, but then you would have \(\dfrac{10-10}{10-10}=\dfrac{0}{0}=1\), and not 2 (unless you want to show that 1=2 as well).

Anyway, here's a similar "proof" with a reason why it doesn't work. http://www.math.hmc.edu/funfacts/ffiles/10001.1-8.shtml