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Stupid and funny from all over the world - II

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Meanwhile after PTI's Peshawar Jalsa, thumbs up if you get it.. :D
 
2a = a
2a - a = 0
a(2 - 1) = 0

So a = 0
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2a = a
(2a)/a = a/a > Dividing both sides by a

So 2 = 1
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2a = a
2a / 2 = a / 2 > Dividing both sides by 2
a = a/2
a/a = a/2a > Dividing both sides by a
1 = 1/2

So 1 = 0.5
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2a = a
2a - a = 0
a(2 - 1) = 0
2 - 1 = 0/a
2 - 1 = 0

So 1 = 0
==============

WTF ?

2a=a can be TRUE only in one case when a=0;

In Mathematics you can not divide anything with ZERO i.e. here is 'a'.

So dividing with ZERO will give you UNDEFINED results not infinity as some old folks assumes.
 
so where am i wrong
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Same old trick: Doing some thing which is not permissible in mathematics then come with Surprises.

1.)Dividing with ZERO is not permissible e.g. last problem of a=2a
2.)Taking root of a negative number is not permissible.e.g. root of -1 is UNDEFINED so 3rd step is wrong.:no:
 
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