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Funny Math Answers

05/01/2007 8:38 AM

I thought I'd post these where everyone could enjoy them. Does anyone have some more?? Thanks jhammond!

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United States - Member - Go Tigers! Engineering Fields - Mechanical Engineering - Specialty - Mechanical Vibrations Fans of Old Computers - UNIVAC - Man I shoulda bought a Whirlwind!

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#1

Re: Funny Math Answers

05/01/2007 3:25 PM

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"Your theory is crazy, but it's not crazy enough to be true." - Niels Bohr
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Anonymous Poster
#2

Re: Funny Math Answers

05/02/2007 10:32 AM

YOU BASTARDS! I almost pissed my pants cuz I was laughing so hard!!!! hahahahaha here's my favorite from way back in middle school.

x=√1√1

x=11

Classic (input numbers and symbols in parenthesis into calculator)

In (69) Dolly Parton said she was (2) (2) (2) big. So the Doctor gave her (51) pills to take in (*8) days. That left her.... [turn calculator upside down]

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Anonymous Poster
#3

Re: Funny Math Answers

05/02/2007 1:47 PM

True story! While interviewing a prospective intern, the interviewer asked the candidate whether she knew "C" language. The reply was yes, so the interviewer asked her to define a 'class.' The reply was "it has a room, chairs, a blackboard, chalk..." LOL!

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Anonymous Poster
#12
In reply to #3

Re: Funny Math Answers

05/09/2007 4:39 PM

C dosen't have classes.. closest data structure is well a Struct.. The language C++ have classes though.

I other words her answer was correct and the question was either a trick or just plain stupid.. or maybe this wasn't really a true story.

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#4

Re: Funny Math Answers

05/02/2007 11:59 PM

Math problems? Call 1-800-[(10x)(13i)^2]-[sin(xy)/2.362x]

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Power-User

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#5
In reply to #4

Re: Funny Math Answers

05/03/2007 5:23 PM

I got this as an attachment to an 'chain' email with a little story about how they this guy had problems with the people at Verizon not able to read his 1 from 9. After a couple rounds via snail mail he sent them this.

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Greece - Member - New Member

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Location: Greece,Athens
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#6
In reply to #5

Re: Funny Math Answers

05/04/2007 2:21 PM

12=(-1)2 => √12=√(-1)2 => 1 = -1 !!!!!! where is this wrong?

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Anonymous Poster
#8
In reply to #6

Re: Funny Math Answers

05/07/2007 1:51 AM

Every negative number's square is the same as its positive equivalent. However, if you take the square root of one, you get one. If you take the square root of negative one, the universe implodes. Therefore, one and negative one cannot be equal.

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#10
In reply to #6

Re: Funny Math Answers

05/07/2007 9:04 AM

well, sqrt(-1) = i = the imaginary part of a complex number, very useful concept in mathmatics, dynamical systems, RLC circuits...

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Anonymous Poster
#13
In reply to #6

Re: Funny Math Answers

05/10/2007 1:50 AM

the error is that you didn't apply the square root sign properly to both sides of the equation so the equal sign was no longer valid. what you should have done was 12=(-1)2 => √(12)=√((-1)2) => 1 = 1.

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Anonymous Poster
#15
In reply to #6

Re: Funny Math Answers

05/10/2007 2:02 AM

my last post was incomplete.... when you write the equation the way it's supposed to be written, according to the order of operations, you evaluate what's inside the square root first or (-1)2 which equals 1. You then take the square root of that, which is 1. The reason it is one and not negative one is because the square root symbol is always used to find the positive root of a number.

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Anonymous Poster
#16
In reply to #6

Re: Funny Math Answers

06/08/2008 10:25 PM

you made an incorrect assumption in between the 2nd and 3rd step.

you took square root of 1 squared meaning you squared 1 first and then you took root of it. you did not do the same for the left side where you square -1 first and then take root.the square and square root do not automatically cancel each other out

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Anonymous Poster
#19
In reply to #16

Re: Funny Math Answers

04/30/2010 3:12 PM

gurgleflarp

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Anonymous Poster
#17
In reply to #6

Re: Funny Math Answers

01/22/2009 8:44 PM

When you take the square root of -1 squared, you get abs(-1) or 1.

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Anonymous Poster
#18
In reply to #6

Re: Funny Math Answers

02/25/2010 10:21 PM

you would be dealing with imaginary numbers.

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Anonymous Poster
#20
In reply to #6

Re: Funny Math Answers

11/23/2010 1:46 AM

well, it is wrong!

you can`t just erase square routs. In order to eliminate them, you have to square both sides of the equation. sot the result would be:

√12=√(-1)2 => (√12)2=(√(-1)2)2 => 12= (-1)2 => 1=1

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#7

Re: Funny Math Answers

05/04/2007 4:34 PM

Here's a good youtube video about math:

http://www.youtube.com/watch?v=CLxMN5YMS3A

It never gets old

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Greece - Member - New Member

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Location: Greece,Athens
Posts: 19
#9
In reply to #7

Re: Funny Math Answers

05/07/2007 6:51 AM

but (-1)2 is a positive number...Most can't figure where the wrong is...it is a very common mistake though.....√x2= |x| = ±x not x

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Anonymous Poster
#11
In reply to #9

Re: Funny Math Answers

05/08/2007 10:42 PM

The trouble with that statement, though, is that √x does not read as "all possible square roots of x"

Radical x is read as "the positive square root of x"

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Anonymous Poster
#14
In reply to #9

Re: Funny Math Answers

05/10/2007 1:58 AM

the other reply is right, radical x implies the positive square root of x. essentialy sqrt(x2) = sqrt(y) where y = x2. again this only looks at the positive root of y. so in this example, y = x2 = 1, thus sqrt(y) = 1 which is the positive root.

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