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#1 2009-10-21 19:36:32
- saundo
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proof that 2=2.82 thus that algebra has a huge fault
i have proven not that 1=2 but that 2=3.41 i am only 16 but im pretty sure there are no faults in this. what i did and expalnations on how are written below
x=2 y=2
x=y
x^2=y+x
√(x^2 )=√(y)+(x)
x=1.41+x
2=1.41+2
2=3.14
line1 x=2 y=2
line 2 therefore x=y
line 3 add x to both sides( since x=2 and 2+2 Is the same as 2^2 it become x^2)
line 4 square root both sides of the equation
line 5 we are left with x=1.41+x because √2 is 1.41 to 2 decimal places
line 6 substitute the pro-numeral x with the its value (2) leaves us with 2=1.41+2
line 7 the answer is 2=3.41
find any faults now?
Last edited by saundo (2009-10-21 23:44:46)
#2 2009-10-21 20:19:53
- dannyv
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Re: proof that 2=2.82 thus that algebra has a huge fault
the problem is between line4 and 5. You cannot distribute the square root, i mean,
To my knowledge there is no way to decompose a square root
#3 2009-10-21 22:26:06
- MathsIsFun
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Re: proof that 2=2.82 thus that algebra has a huge fault
I removed a rude comment
Nice try, saundo, but Algebra still wins 
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
#4 2009-10-21 23:34:18
- saundo
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Re: proof that 2=2.82 thus that algebra has a huge fault
dannyv wrote:
the problem is between line4 and 5. You cannot distribute the square root, i mean,
To my knowledge there is no way to decompose a square root
for some reason the brackets did not come up properly
#5 2009-11-23 02:51:16
- simplyjasper
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Re: proof that 2=2.82 thus that algebra has a huge fault
3rd line itself is wrong...
If y = x,
x + y = 2x or 2y not x^2
#6 2009-11-23 18:39:28
- bobbym
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Re: proof that 2=2.82 thus that algebra has a huge fault
Hi;
For x=2 and y=2 as he states in line 1:
You can say x + y = x^2.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#7 2010-05-18 06:32:52
- DaveRobinsonUK
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Re: proof that 2=2.82 thus that algebra has a huge fault
Hi Saundo
Are you using a calculator? If so are you pressing the equals sign when you add x+y or entering x then add then y
then the sqrt.
I get 1.4142136, which is the approximation of the sqrt(2) and when I then press = I get 3.4142136
The reason for this is that calculators and programming languages evaluate certain operations before others
usually following the BIDMAS rules. Since SQRT() is a division operation it would be evaluated first on the
associated number, which is 2.
If you have a bracket function, you should get 2. The correct answer should be (+/-2)
Can feel it coming together.. Slowly but Surely
#8 2010-10-27 13:41:31
- thewordalive
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Re: proof that 2=2.82 thus that algebra has a huge fault
MathsIsFun wrote:
I removed a rude comment
Algebra still wins
algebra wins, but geometry pwns >:]