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Weird Mathematical Fallacies (or facts?)

Posted: Tue Sep 03, 2013 7:36 am
by e-cobra
When I was searching something about maths, I found the following paradoxical proof that proves 0=2.


We've to prove 0=2 so 0 can be written as 0/0.

So, 0/0=2, Here, 0/0 in LHS (Left Hand Side) and 2 is RHS (Right Hand Side)

0/0 = 100-100/100-100 ....... as 100-100 will give zero

= 10x10-10x10/10x10-10x10 .........100 can be written as 10x10

=10^2-10^2/10(10-10) ..........Taking 10 common in denominator

=(10+10)(10-10)/10(10-10) ... As a^2-b^2= (a-b)(a+b)

= 10+10/10 .......as (10-10) cancels out

=20/10 = 2 8O
LHS=RHS how? If the text is hard to understand, look at thisimage.

How's that possible? Is using mathematics to solve real world problems inaccurate?

Posted: Tue Sep 03, 2013 11:20 am
by Seahawk
What is this sum called?

Posted: Tue Sep 03, 2013 12:44 pm
by e-cobra
What is this sum called?
What sum? :roll:

Posted: Tue Sep 03, 2013 12:56 pm
by RohitXL5
Wow, I appreciate that equation. That's really amazing that there's a proof of 0/0 = 2. I searched more about it and found that it's a mathematical joke for trolling. At a step, he complicated denominator from where the confusion start.

If the denominator wasn't complicated by a formula. The formula of numerator could be used in denominator.
0/0 = 2
0/0 = 100

Posted: Tue Sep 03, 2013 1:16 pm
by A320_Pilot
Omai gawd. NUMBERS! *shouts while running away*
School is more than enough, bro. :|

Anyway, I wont lie, I like maths(when I'm NOT okay :P)
But, dunno what is that. O.o Prob 'cause I only do maths in Arabic.

Posted: Tue Sep 03, 2013 1:18 pm
by e-cobra
But 10(10-10) has the same meaning as (10x10) - (10x10) which I wrote as 10 square minus 10 square.

Posted: Tue Sep 03, 2013 1:39 pm
by RohitXL5
I know, that's what I'm telling you that both are same. Equations are always firstly multiplied, then added, then subtracted and then at last, the division is done. Similarly, the equation should hire easier method.

Posted: Tue Sep 03, 2013 1:53 pm
by A320_Pilot
If I'm healing and correctly remembering, you have to do the numbers inside the ()'s first.
So, (10-10) = (0), then 10(0) would = 0, cause anything *0 = 0.

EDIT: Nevermind if its already explained.

Posted: Tue Sep 03, 2013 2:01 pm
by RohitXL5
If I'm healing and correctly remembering, you have to do the numbers inside the ()'s first.
So, (10-10) = (0), then 10(0) would = 0, cause anything *0 = 0.

EDIT: Nevermind if its already explained.
You're true, we always solve and open brackets first.

Posted: Tue Sep 03, 2013 4:31 pm
by Seahawk
Yes, we solve the brackets first. And one more thing: - We fist solve multiplication, then divide. Next,...... Forgot.:(

Posted: Tue Sep 03, 2013 4:38 pm
by A320_Pilot
Next Plus And Minus.

I like doing things like this: 10 Q + 200 = 2200 (I know its not bracket thingy, though)

____________________

Solve, Easy: 10 Q + 200 - 200 = 2200 - 200, 10 Q/10 = 2000/10
Q = 200.