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civilizedwasteland

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civilizedwasteland Avatar Level 310 Comments: Wizard
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Gender: male
Age: 19
Steam Profile: civilizedwasteland
X-box Gamertag: chemicalkw47
Date Signed Up:11/24/2013
Last Login:12/21/2014
Location:Amerigo
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Level 118 Content: Funny Junkie → Level 119 Content: Funny Junkie
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Level 310 Comments: Wizard → Level 311 Comments: Wizard
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Times Content Favorited:124 times
Total Comments Made:1250
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    Cartoon Cartoons Cartoon Cartoons
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    YAAAAA! err... NOOOO! YAAAAA! err... NOOOO!
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    Get Rekt Get Rekt
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latest user's comments

#49 - Be the best, get promoted, whip those newbies and complacents … 12/19/2014 on FSF? +11
#18 - the dog also licks the fire which is why he smacks it.  [+] (1 new reply) 12/19/2014 on where are you when diarrhea... 0
User avatar #19 - ciacheczko (12/19/2014) [-]
That's what I meant. But yeah, you're right.
#126 - As a huge fan of strategy games, I find civilization quite bor… 12/19/2014 on This Is Why We Can't Have... +1
#12 - tfw when i got a 60% on a final and wont be passing the class.  [+] (2 new replies) 12/18/2014 on To all students, +2
#13 - pleuradispensor (12/18/2014) [-]
I only passed jr. high because they told me holding me back would be a waste of time.
User avatar #16 - castereleven (12/18/2014) [-]
You can't actually fail junior high. Junior high in it's entirety is a waste of time and no one really cares about what grades you got there.
#11 - oh **** youre right, thats pretty painful though 12/18/2014 on Poor baby 0
#28 - look how ****** cute 12/18/2014 on FML 0
#5 - or white out, which is more kinky 12/17/2014 on Super Effective! 0
#8 - I believe it was originally an old picture called Diary of a C…  [+] (1 new reply) 12/17/2014 on Diary of a Cat 1906, her... 0
#9 - neverbefore (12/17/2014) [-]
no
#13 - -7 is only a possible answer if the question was x^2=49 and yo…  [+] (10 new replies) 12/16/2014 on Going to class drunk -4
#29 - anonymous (12/17/2014) [-]
ok faggots, time to learn math:
let's assume sqrt(x) = ±y, therefore, sqrt(x) = -sqrt(x), as ±y = -(±y) = ±y (the negative sign just reverses any sign, but since it's a ± sign, it is the same reversed). if we have sqrt(x) = -sqrt(x), then sqrt(x) + sqrt(x) = 0 (add sqrt(x) to both sides)
now, with the assumption that sqrt(x) = ±y, then with this we get: ±y + ±y = 0, or ±y ± y = 0
now, analyzing all the possible signs you could use with this equation: y + y = 2y, -y + y = 0, y - y = 0, -y - y = -2y
so, we get that sqrt(x) = -sqrt(x) only 50% of the time, so from this we determine that sqrt(x) =/= -sqrt(x), and with that, we get that sqrt(x) =/= ±y, thus disproving ±7 being the root of 49
principal root: sqrt(x) will always return the positive root of x, and -sqrt(x) will always return the negative root of x
tl:dr i'm siding with civilizedwasteland on this one inb4 redthumbed to oblivion
#31 - anonymous (12/17/2014) [-]
now, you may have some arguments
1. "you substitute + or - for the ± when adding ±y and ±y"
yes you do, in the quadratic formula both (-b+sqrt(b^2-4ac))/2a and (-b-sqrt(b^2-4ac))/2a are solutions, so you do have to use both possibilities for the signs.
2. "the signs you use when adding ±y and ±y must be opposites of each other"
?, why would that be the case? if sqrt(x) = ±y, then it shouldn't matter whether they're opposites signs or not because it should remain true in all cases.
3. "-(±y) =/= ±y"
add ±5 to 5, then try subtracting ±5 from 5, same answer(s)
#30 - axoxia has deleted their comment.
#18 - mayoroftownsville (12/17/2014) [-]
No, ±7 is the correct answer. You had a bad math teacher.
User avatar #21 - emiyashirou (12/17/2014) [-]
Yeah, no, you're wrong. The term 'square root' only refers to positive, imaginary or complex numbers. A square root cannot be a negative.
#28 - noschool (12/17/2014) [-]
you are thinking "principal square root"

the square root of 49 is +/-7 but the principal square root of 49 is 7
#26 - terminallyunique (12/17/2014) [-]
>refers to imaginary or complex numbers

Nigga what the hell do you think complex numbers are ?

You CAN find the square root of a negative number; thats the whole concept of imaginary and complex numbers. Use "i" to represent the root of -1; therefore i^2 = -1

By extension root -49 for example, is 7i.

But that's not even the point. Every number has a square root. If you square a negative value you get a positive value. That's why in saying a value for square root answers, unless otherwise stated, the answer is always +/- the actual numerical root value.



Source : Current Pure and Applied Mathematics student. (I swear I'm 18)
User avatar #32 - emiyashirou (12/17/2014) [-]
You didn't even read what I said at all, did you? Reread my comment and tell me if it says in even one place that a square root cannot be an imaginary number or you cannot find the square root of a negative.
User avatar #17 - lifesavers (12/17/2014) [-]
Except that's wrong.
#19 - anonymous (12/17/2014) [-]
Technically sqrt(49) can only be 7 because it is the principal square root, to get sqrt(49) to be equal to -7 you would have to say -sqrt(49). the reason x^2=49 => x=+/- 7 is because you can input either -7 or 7 into the equation to get 49, with just the sqrt function you only use the positive answer as you can only return one solution and it is also accepted to only use the positive root.

tl:dr
sqrt(x) =/= -sqrt(x)
#17 - thats kind of sad 12/16/2014 on Catholic School +1

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What do you think? Give us your opinion. Anonymous comments allowed.
User avatar #10 - aerosol ONLINE (03/14/2014) [-]
can I get the big version of your avatar?
#11 to #10 - civilizedwasteland (03/18/2014) [-]
you mean this?
you mean this?
User avatar #12 to #11 - aerosol ONLINE (03/18/2014) [-]
yesperfect.jpg
User avatar #1 - justforthethumbs (12/27/2013) [-]
trade me your scribe?
User avatar #2 to #1 - civilizedwasteland (12/27/2013) [-]
fight me for it
User avatar #4 to #2 - justforthethumbs (12/27/2013) [-]
ill bash ur head in m8 i swer on me mum

n yea whatsittoya
User avatar #7 to #4 - civilizedwasteland (12/27/2013) [-]
For some reason my comment disappeared what do you have anything good to offer?
User avatar #8 to #7 - justforthethumbs (12/28/2013) [-]
i got some gears i think
User avatar #9 to #8 - civilizedwasteland (12/28/2013) [-]
gears and toads
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