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2=3 the secret proof

Posted by Math

It is possible with a little trickery to prove that 2=3 by using algebra.

Let x=y=5

15x=15y and
10x=10y
15x-10x=15y-10y
15x-15y=10x-10y (by transposition)
15(x-y) =10(x-y)
ie,15=10
ie 2=3
Did you get the trick? Otherwise just give an email. I'll send you the trick behind this.

 

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3 Comments:

  1. Anonymous said...
    10/12/2006  
    The trick is that (x-y)/(x-y) is not equal to 1 when x=y
    Math said...
    10/12/2006  
    Yes you are correct.When x=y, x-y=0 and we know that division by zere is not defined.
    Anonymous said...
    10/07/2007  
    I like problems like this. If you don't, then let this guy do your math for you.
    math homework help

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