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gulab50


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Subject : math question
can 2=1 if yes then prove that?

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Posted on May, 15 2011 02:01:21 PM


Rameez


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I think it's Impossible

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Posted on May, 15 2011 06:45:30 PM

gulab50


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Rameez said:

I think it's Impossible

its possible.but challenging

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Posted on May, 16 2011 03:41:36 PM

gulab50


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no one can prove it.............

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Posted on May, 21 2011 12:42:52 PM

cute4cute


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eveything is possible now

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Posted on May, 21 2011 01:16:03 PM

gulab50


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cute4cute said:

eveything is possible now

then prove this question cute....

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Posted on May, 22 2011 01:14:55 AM

Ayazgaad


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a = b
multiply both sides by a
a^2 = a*b
subtract b^2 from both sides
a^2-b^2 = a*b-b^2
apply the distributive law to both sides
(a+b)(a-b) = b(a-b)
divide both sides by (a-b)
(a+b) = b
substitute all a's for b's (remember, if a = b you can do this)/
a+a = a
regroup the two a's in the left side, and rename it 2a
2a = a
divide both sides by a
2 = 1

The point which I highlighted in red is where you would have to divide each side of
(a+b)(a-b)=b(a-b)
by (a-b) to get
(a+b)=b

But you will notice that if the first part of the proof (a=b) is true, then (a-b) would equal 0.
And, as we know, we can't divide by 0, so from that point on this "proof" that 1=2 is relegated to the non-valid, but interesting, heap of other things which people try to use to prove things which are also false.

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Posted on May, 23 2011 01:30:14 PM

gulab50


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Ayazgaad said:

a = b
multiply both sides by a
a^2 = a*b
subtract b^2 from both sides
a^2-b^2 = a*b-b^2
apply the distributive law to both sides
(a+b)(a-b) = b(a-b)
divide both sides by (a-b)
(a+b) = b
substitute all a's for b's (remember, if a = b you can do this)/
a+a = a
regroup the two a's in the left side, and rename it 2a
2a = a
divide both sides by a
2 = 1

The point which I highlighted in red is where you would have to divide each side of
(a+b)(a-b)=b(a-b)
by (a-b) to get
(a+b)=b

But you will notice that if the first part of the proof (a=b) is true, then (a-b) would equal 0.
And, as we know, we can't divide by 0, so from that point on this "proof" that 1=2 is relegated to the non-valid, but interesting, heap of other things which people try to use to prove things which are also false.

wah kya bat ha...

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Posted on May, 26 2011 02:19:26 PM

Rameez


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Ayazgaad said:

a = b
multiply both sides by a
a^2 = a*b
subtract b^2 from both sides
a^2-b^2 = a*b-b^2
apply the distributive law to both sides
(a+b)(a-b) = b(a-b)
divide both sides by (a-b)
(a+b) = b
substitute all a's for b's (remember, if a = b you can do this)/
a+a = a
regroup the two a's in the left side, and rename it 2a
2a = a
divide both sides by a
2 = 1

The point which I highlighted in red is where you would have to divide each side of
(a+b)(a-b)=b(a-b)
by (a-b) to get
(a+b)=b

But you will notice that if the first part of the proof (a=b) is true, then (a-b) would equal 0.
And, as we know, we can't divide by 0, so from that point on this "proof" that 1=2 is relegated to the non-valid, but interesting, heap of other things which people try to use to prove things which are also false.

Baijan constant cannot be proof by variables, and you want to proof 2=1, You must firstly take one side either L.H.S or R.H.S
think its Maths not joke

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Posted on May, 28 2011 12:06:05 PM

gulab50


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Rameez said:

Ayazgaad said:

a = b
multiply both sides by a
a^2 = a*b
subtract b^2 from both sides
a^2-b^2 = a*b-b^2
apply the distributive law to both sides
(a+b)(a-b) = b(a-b)
divide both sides by (a-b)
(a+b) = b
substitute all a's for b's (remember, if a = b you can do this)/
a+a = a
regroup the two a's in the left side, and rename it 2a
2a = a
divide both sides by a
2 = 1

The point which I highlighted in red is where you would have to divide each side of
(a+b)(a-b)=b(a-b)
by (a-b) to get
(a+b)=b

But you will notice that if the first part of the proof (a=b) is true, then (a-b) would equal 0.
And, as we know, we can't divide by 0, so from that point on this "proof" that 1=2 is relegated to the non-valid, but interesting, heap of other things which people try to use to prove things which are also false.

Baijan constant cannot be proof by variables, and you want to proof 2=1, You must firstly take one side either L.H.S or R.H.S
think its Maths not joke

acha rameez muja tu pata he nahi ta ka ye proof nahi hu sakta.......

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Posted on May, 28 2011 03:02:43 PM

ZaiN007


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2+1=1
3-1=1
2=1

this is wrong.......

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Posted on June, 27 2011 09:18:27 PM

Noman


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yes it is possible

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Posted on June, 28 2011 11:40:36 AM

ShahidRhm


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Everything Is Possible For Engineers... (Regarding Math And Technologies)

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Posted on June, 28 2011 12:05:08 PM

2944013


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can yo prov it 1+1=0

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Posted on June, 28 2011 12:17:04 PM

ShahidRhm


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1+1 = 0

Assumptions

i = Sqrt (-1)
Sqrt (a.b) = Sqrt a x Sqrt b

Now...
1+1 = 1 + Sqrt 1
1 + Sqrt 1 = 1 + Sqrt [(-1)(-1)]
1 + Sqrt [(-1)(-1)] = 1 + Sqrt (-1) x Sqrt (-1)
1 + Sqrt (-1) x Sqrt (-1) = 1 + i x i
1+ i^2 = 1 + (-1)
1 + (-1) = 1-1
So..
1 - 1 = 0

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Posted on June, 28 2011 12:42:52 PM

gulab50


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ShahidRhm said:

1+1 = 0

Assumptions

i = Sqrt (-1)
Sqrt (a.b) = Sqrt a x Sqrt b

Now...
1+1 = 1 + Sqrt 1
1 + Sqrt 1 = 1 + Sqrt [(-1)(-1)]
1 + Sqrt [(-1)(-1)] = 1 + Sqrt (-1) x Sqrt (-1)
1 + Sqrt (-1) x Sqrt (-1) = 1 + i x i
1+ i^2 = 1 + (-1)
1 + (-1) = 1-1
So..
1 - 1 = 0

wah engineer bhai


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Posted on July, 03 2011 04:01:28 PM

ShahidRhm


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Thanks Bro


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Posted on July, 04 2011 11:48:42 PM

agha11


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no not possible

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Posted on July, 06 2011 03:40:40 PM

gulab50


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agha11 said:

no not possible

kyu its possible

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Posted on July, 09 2011 05:33:45 PM

shahidali11222


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yes it is possible.

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Posted on April, 05 2013 05:59:10 PM

Tanveermasood


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so simple.

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Posted on April, 11 2013 04:47:50 PM