Wednesday, January 23, 2013

Initiate yourself into math reasoning


Where is the flaw?


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2 comments:

  1. Alex CheeJanuary 23, 2013 at 9:28 AM

    (10+10) (10-10) = +200 -200
    That is different than +100 -100.
    So the step from 10^2 -10^2 to (10+10)(10-10) is flawed?

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  2. TullanApril 14, 2013 at 8:06 AM

    We can not cancel 0/0 as 1. It is in 4th step from bottom. (10-10)/(10-10) is not equal to 1. :)

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