Find the Fallacies

Here are some examples of false Mathematical proofs:

Number 1:

Number 2:

Number 3 (the famous one):

let:

Number 4:

(1-1) + (1-1) + … + (1-1) + (1-1) + … = 0

1 + (-1+1) + (-1+1) + … + (-1+1) + … = 0

1 + 0 + 0 +… + 0 + .. = 0

1 = 0


4 responses to this post.

  1. Number 3 is fun. Who doesn’t love division by zreo? I have a bunch of other interesting false proofs at my blog if you’re interested.

    Reply

  2. Posted by Aayush Kumar on May 8, 2012 at 10:08 AM

    Easy in question 3 we cant divide by 0
    (a-b)

    Reply

  3. Posted by Aayush Kumar on May 8, 2012 at 10:15 AM

    And sir also theres a special case i have founded with 3no.
    a=b
    a^2=ab
    b^2-a^2=b^2-ab
    (b-a)(b a)=b(b-a)
    b a=b
    b a-b=0
    a=0
    ☺☺☺☺☺☺

    Reply

  4. Posted by Aayush Kumar on May 8, 2012 at 10:16 AM

    And in 4th question there is wrong in 2nd step and about 1 and 2 i didnt know complex numbers :) :):D:D

    Reply

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