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Impossible math 2


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14 replies to this topic

#1 comperr

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Posted 25 June 2007 - 03:23 AM

1 = sqrrt(1) = sqrrt((-1)(-1)) = sqrrt(-1)sqrrt(-1) = -1

The way I wrote out the words may be a bit confusing but go figure anyway.

What is the flaw with this?
Spoiler for ...

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#2 vadlapatis

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Posted 26 June 2007 - 11:50 AM

tricky solution gud one
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#3 normdeplume

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Posted 26 June 2007 - 03:33 PM

There is no such thing in the real world as the square root of -1.

So leaving aside imaginaery numbers, the equation should be

1 = sqrt(1)
1 = 1 * 1 or
1 = -1 * -1

Which does not prove the origianl sum. Sorry.
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#4 mdsl

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Posted 26 June 2007 - 06:40 PM

There is no such thing in the real world as the square root of -1.


Are you saying it doesn't exist? Because there is a button for it right here on my calculator. If you meant to say real numbers than just skip the puzzles with complex numbers and spend some more time not watching MTV.
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#5 knoxmic

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Posted 02 July 2007 - 02:56 PM

normdeplume is right. There is no square of a negative because every value squared makes a positive.
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#6 comperr

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Posted 02 July 2007 - 04:17 PM

the sqrrt of a negative number is called imaginary. sqrrt(-1) = i
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#7 unreality

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Posted 05 July 2007 - 04:58 AM

i will use V for square root symbol

V(-1) = i

V(-2) = 2i

V(-500) = 500i

so on
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#8 mathemagister

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Posted 09 July 2007 - 01:39 PM

Actually, it's not like that.

sqrt(-9) = +3i NOTE: + is the "plus or minus" symbol.

sqrt(-81) = +9i
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#9 comperr

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Posted 09 July 2007 - 11:55 PM

Did you see my spoilers with the answer? I already said this.
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#10 mathemagister

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Posted 11 July 2007 - 10:52 AM

Huh? You didn't say anything about square roots of negative numbers!?
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