Weird Mathematical Fallacies (or facts?)

False but yet true...

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e-cobra
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Weird Mathematical Fallacies (or facts?)

Postby e-cobra » Tue Sep 03, 2013 7:36 am

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
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How's that possible? Is using mathematics to solve real world problems inaccurate?
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Postby Seahawk » Tue Sep 03, 2013 11:20 am

What is this sum called?
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Postby e-cobra » Tue Sep 03, 2013 12:44 pm

What is this sum called?
What sum? :roll:
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Postby RohitXL5 » Tue Sep 03, 2013 12:56 pm

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
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Postby A320_Pilot » Tue Sep 03, 2013 1:16 pm

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.
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Postby e-cobra » Tue Sep 03, 2013 1:18 pm

But 10(10-10) has the same meaning as (10x10) - (10x10) which I wrote as 10 square minus 10 square.
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Postby RohitXL5 » Tue Sep 03, 2013 1:39 pm

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.
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Postby A320_Pilot » Tue Sep 03, 2013 1:53 pm

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.
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Postby RohitXL5 » Tue Sep 03, 2013 2:01 pm

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.
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Postby Seahawk » Tue Sep 03, 2013 4:31 pm

Yes, we solve the brackets first. And one more thing: - We fist solve multiplication, then divide. Next,...... Forgot.:(
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Postby A320_Pilot » Tue Sep 03, 2013 4:38 pm

Next Plus And Minus.

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

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