/jp/ - Otaku Culture

[Anonymous No.]

You should be able to solve this, /jp/.

After all, you have the highest average IQ on 4chan.

[Francis York Morgan !mbHjxjfHlA No.]

-9

epic win op

[Anonymous No.]

-9

[Anonymous No.]

This was just posted on /v/.

[Anonymous No.]

inb4 some troll doesn't answer -9

[Anonymous No.]

17

[Anonymous No.]

17.

[Francis York Morgan !mbHjxjfHlA No.]

>>6178583
>he goes to other boards!

[Anonymous No.]

17.

[Anonymous No.]

-9

[Francis York Morgan !mbHjxjfHlA No.]

how are you people getting 17? i can't figure out your fucked up order of operations, regardless if you're trolling or not.

[Lily's Boyfriend !0e.VYU22HM No.]

5-6*6/2+4
= 5-36/2+4
= 5-18+4
= -13+4
= -9

[Anonymous No.]

>>6178603
I never learned math properly and failed all my classes. True story.

[Anonymous No.]

>>6178608
Why can't you please excuse my dear aunt sally?

[Anonymous No.]

>>6178613
Learning with little gaylets like that is for autists.

[Anonymous No.]

5-6*6/2+4

Looking at the PEMDAS rule:
5-(36)/2+4
5-18+4
5-22
-17

AKA you are all idiots

[Anonymous No.]

>>6178620
Not only do you not know the standard order of operations, but you think "AKA" means something which it does not. Please return to school.

[Anonymous No.]

gg baby

[Francis York Morgan !mbHjxjfHlA No.]

>>6178620
found a pic of this poster

[Anonymous No.]

>>6178620

Order of operations, bitch.

Addition and Subtraction are on the same level, so operate left to right when you're at that stage. 5-18 takes priority over 18+4.

BACK TO FIFTH GRADE WITH YOU

[Anonymous No.]

>5-18+4
>5-22

woman detected

[Anonymous No.]

>>6178625
>>6178632
I TROLLED YOU GUYS HARD

[Anonymous No.]

>>6178618
You mean mnemonics?
Much smarter people than you use them every day, to do very important things.

[Anonymous No.]

>>6178613
God, I should have learned this years ago. This does me no good now.

[Anonymous No.]

The answer is 17.

Trust me i am math and outer space.

[Anonymous No.]

Majority of the thread is one person.

[Anonymous No.]

>>6178639
Did you know Easter bunnies get drunk at Easter?

[Anonymous No.]

Kennedy died of starvation, suckah!

[Anonymous No.]

>>6178644
It's never too late to learn.

[Shikieiki !!T3dW8SatkER No.]

0.99999... = 1
x = 0.99999...
10x = 0.99999... × 10 = 9.99999...
100x = 0.99999... × 100 = 99.99999...
100x -10x = 90x
100x - 10x = 99.99999... - 9.99999... = 90
90x = 90
x = 1
0.99999... = 1

[Anonymous No.]

>>6178639
They are gaylets and they are for autists. By "much smarter" I assume you just mean "more learned"; nobody is smarter than me.

[Anonymous No.]

>>6178661
1/3 = 0.33..
2/3 = 0.66..
3/3 = 0.99..

[Anonymous No.]

People on the spectrum enjoy making up words like "gaylets," "autists," "noviophobia," and "gaybian."

[Anonymous No.]

>>6178662
Well crap...you just might be a genius.

[Shikieiki !!T3dW8SatkER No.]

>>6178665
3 ÷ 3 = 1

[Anonymous No.]

>>6178670
On the spectrum of what?

[Anonymous No.]

>>6178661

I find it funny that people are supposed to take ".9 repeating = 1" as it's some sort of miracle of mathematics.

It's... uh... Duh? Basic understanding, here.

[Anonymous No.]

>>6178665
This is so dumb... /jp/ really is full of children.

[Anonymous No.]

>>6178681
It's not 1, just like .8888 repeating is not .9. Get a brain, moran.

[Anonymous No.]

>>6178681
It's not that it's a miracle of mathematics. It's that so many people on so many levels stubbornly reject the reasoning that it has to be elaborated to the point that it seems like one is trying to present it as one.

[Anonymous No.]

>>6178679
Autism

[Anonymous No.]

>>6178681
Its not 1, its infinitely close to 1. People who disagree only prove how simple and stupid mankind is.

[Shikieiki !!T3dW8SatkER No.]

>>6178685
x = 0,88888...
10x = 10 × 0,88888...
10x - x = 9x
10x - x = 8,88888... - 0,88888... = 8
9x = 8
x = 8/9

[Anonymous No.]

All up in this thread.

OP is just mad that it got solved like 2 minutes after posting and clinging onto whatever pittance we give him.

[Anonymous No.]

>>6178685
Nobody's saying that 8/9 = .9.
We're saying that 9/9 = 1.
lrn2readingcomprehension

[Anonymous No.]

>>6178620
The order of operations has nothing to do with it here
5-6*6/2+4=5-18+4
obviously but you don't get different results if you add different sides of the equation
(5-18)+4 != 5-(18+4)
obvious... but the only reason you would make this mistake was if you were retarded. That is wrong... the correct way is
(5-18)+4 = 5+(-18+4) as you're adding negative 18 to positive 4 or
5-18+4 = -9
5+4 = -9+18
5+4 = 18-9
and not
5-18+4 = -17
cause that's
5+4 = -17+18
just
5+4 = 18-17
dumbfuck retarded
5+4 = 1
The fact that ANYONE would need this be explained to them makes this a very sad day for the species. Now excuse me, I'm getting me a banana coz I'm hungary

[Anonymous No.]

>>6178690
People "on the spectrum" have difficulty with words in the first place, they're not really up for inventing them.

[Anonymous No.]

>>6178692

Infinitely close is good enough, Xeno.

[Anonymous No.]

>>6178700

>Zeno*

(actually Ζήνων but who cares)

[Anonymous No.]

>>6178692
This. Why is humanity so stupid?

[Xerxes's Sealskin !!TxvOg0il1PS No.]

-9

[Anonymous No.]

>>6178698
I love how there's always some math nerd who goes out of his way to explain the formula in precise detail, when nobody really cares.

[Shikieiki !!T3dW8SatkER No.]

>>6178692
>>6178685
see >>6178661

1/3 = 0,33333...
1/3 + 1/3 + 1/3 = 3/3
0,33333... + 0,33333... + 0,33333... = 1
3/3 = 3 ÷ 3 = 1

[Anonymous No.]

>>6178708
There are so many practical applications in the world where "infinitely close to 1" can be and is taken to be 1. Maybe you should look into applied math beyond a high school level and quit being so stupid yourself.

[Anonymous No.]

>>6178577
/jp/ cannot smart
try /sci/

[Anonymous No.]

Cirno made the formula, so the answer is actually --8.

[Anonymous No.]

/jp/ confirmed for exponentially smarter than /v/.

Not like that says anything.

[Anonymous No.]

>>6178717

Technically, if you want to do that, "1/3 = .33333..." is incorrect.

We can't represent 1/3 in decimal value. .333... is just a handle on something that can't accurately be portrayed like that.

But this is so incredibly minor that I'm not going to push the point.

[Anonymous No.]

>>6178719
>I do not understand how infinity works

[Anonymous No.]

>>6178728

>Neither do I

If "infinitely close" did not round into a full value, Zeno's first paradox should freeze the entire universe and motion should be impossible.

[Anonymous No.]

>>6178726
That's why it's wrong. See, it's like this:

1/3 = .3333.... (dots represent infinity)
2/3 = .6666....
3/3 = 1

Why?
.3333+.6666=.9999
....+....=the rest that adds up to 1

Why can't people understand this?

[Anonymous No.]

>>6178724

Well, I'd expect even a Tea Party convention to be smarter than /v/. Well maybe not, if anything they'd be competing against each other to see who can add up 2+2 first.

[Houraisan Kaguya !NEATnUrmu2 No.]

Oh, I thought 6*6 was 42 for some reason.
Now I get it

[Anonymous No.]

Took me ten seconds to get the answer (-9). I haven't done an equation since I dropped out of high school five years ago.

[Anonymous No.]

>>6178731
Infinity + Infinity is a little bit farther from 1 than one might expect.

[Anonymous No.]

>>6178738
It's not infinity.

It's 1/3 of infinitely small added with 2/3 of infinitely small.

[Anonymous No.]

>>6178733

[Anonymous No.]

>>6178743
Oh no, I'm certain you said that "...." represents infinity.

[Anonymous No.]

-10. No, seriously.

[Anonymous No.]

I have no idea of why people have such difficulties with the concept of repeating decimals. If you can accept that 1/3 is another writing for .33..., why can't you also accept that .999... is another writing for 1?

[Anonymous No.]

>>6178757
What, how?

[Anonymous No.]

>>6178577
x=5-6x6/2+4
2x=10-6x6+4
2x=10+4-36
2x=-18
x=-9

[Anonymous No.]

>>6178753
Bah, fine. Since infinity is always the same anyway, it doesn't really change anything. Whether it is infinitely small of infinitely large.

[Anonymous No.]

>>6178763
>base ⑨ fuck yeah.jpg

[Anonymous No.]

5-6=-1
-1x6=-6
-6/2=-12
-12+4=-8

That's the answer. You forgot to use Cirno logic.

[Shikieiki !!T3dW8SatkER No.]

If 0.99999... =! 1 then that would mean 1/3 + 1/3 + 1/3 =! 1 while 3/3 = 1.
ITT: People who can't into real numbers.

[Anonymous No.]

>>6178764
shit nigger, wtf are you doing

[Anonymous No.]

>>6178765
I am sorry, but you do not know what you're talking about.

[Anonymous No.]

5 - 6 x 6 / 2 + 4
5 - 36 / 2 + 4
5 - 18 + 4
-13 + 4
-9

[Anonymous No.]

>>6178776

I'd into your real numbers, Eiki.

[Anonymous No.]

y(x) = 5 - ( 6 x 6 ) / 2 +4
y(x) = -9

[Tro !LLLLLLLLL. No.]

ITT: Bakas.

[Anonymous No.]

>>6178762

People who refute 0.999...=1 simply don't truly understand what "infinite" means.

If something is "infinitely close" to another thing, it is that thing. "Tending" to something as it approaches infinity is a different thing entirely.

[Cink !sWdnfnr5Yw No.]

>>6178776
1/3 is a representation of .333 repeating. Which is a limit representing 1/3 of 1. Its not an actual number.

[Anonymous No.]

[Anonymous No.]

>>6178792
>If something is "infinitely close" to another thing, it is that thing.
You couldn't be more wrong.

[Anonymous No.]

>>6178772
>-6/2=-12
If you're going to ignore the order of operations just for fun, at least consistent and correct in the context of your own logic.

[Anonymous No.]

>>6178793
>Its not an actual number.

The definition of a rational number is a value which can be represented by p / q, where p and q are integers.

[Anonymous No.]

>>6178799
It's Cirno logic, it's not supposed to make sense, stupid.

[Shikieiki !!T3dW8SatkER No.]

>>6178797
He's right, unless you can tell us all what's the exact amount of infinitely small. But then don't blame us if the universe ceases to exist.

[Anonymous No.]

>>6178803
And you can't just switch from that representation to the other to prove your "point".

[Anonymous No.]

>>6178793
>actual numbers

I'm not aware of an algebraic structure of this name.

[Anonymous No.]

[Anonymous No.]

>>6178797

Infinitely small has to collapse into 0 or else you cannot move because you have to cross an infinite amount of infinitely small divisions. If infinitely small does not collapse into 0, then they stack infinitely and all things are infinite distance apart.

[Cink !sWdnfnr5Yw No.]

>>6178807
I wasn't using a mathematical term. What I'm saying is that yes .9 repeating is another way of writing 1, but its not some profound discovery of two numbers being equal. .9 repeating is not a separate number from 1, its a limit that represents it.

[Anonymous No.]

>>6178805
Would you think that 1/infinity is 0? Yeah, I think you would. And you would be wrong.
The LIMIT as x approaches infinity of 1/x is 0. But 1/infinity is not 0. Tell me, do you know what an asymptote is?

[Anonymous No.]

>>6178805
>amount
>infinity

[Anonymous No.]

BEDMAS
5-6x6/2+4
5-6x3+4
5-18+4
5-22
-17

[Anonymous No.]

>>6178809
>didn't study some basic maths
That's not basic and anyone claiming it is obviously thinks he's really smart. Funny, considering he's wrong.

[GO TO HELL JERRY No.]

>:D

[Anonymous No.]

Fuck, I feel like I'm back to high school, a pity I've forgot most of this stuff.

[Shikieiki !!T3dW8SatkER No.]

>>6178815

Well if you're saying there's something inbetween 0,999... and 1 then please tell me what's inbetween.

[Anonymous No.]

>>6178806
Yes, you can. The mapping between the two is well defined.

[Anonymous No.]

>>6178819
Go to wolframalpha.com and enter it in.

It's -9.

Your call.

[Anonymous No.]

>>6178819
It's actually
B(Or P)
E
MD
AS

Multiplication and division are on the same tier, so you just do those left to right. Otherwise it's fine.

[Anonymous No.]

If infinitely x = x then 1/0 equals infinitely small.

[Anonymous No.]

>>6178830
I mean, x/0.

[Anonymous No.]

>>6178826
I'm not saying that. I'm saying that the reason .999... = 1 is NOT because its infinitely close to 1.

[Anonymous No.]

>>6178813
The tangent to a curve at infinity. Does this have some kind of point you were leading up to? The problems with 1/infinity are wholly different, such as reversability; the answer to the problem depends on what
construct we are working in.

[Anonymous No.]

>>6178830
No, that's undefined.
And the limit as x approaches 0 of 1/x is infinity.
Oh, hey, you must be a retard!

[Anonymous No.]

This is a horrible thread and I hate every single one of you.

[Anonymous No.]

>>6178842
Many mathematicians don't agree with x/0=undefined. I am just one of them.

[Anonymous No.]

These threads make me feel like a genius. It's like I'm really Cirno!

[Anonymous No.]

>>6178843
Then try to quantify your hate as a function in a graph

[Anonymous No.]

>>6178842
1/1=1
1/.5=2
1/.00000....=infinitely large

But by that same logic:
1/1=1
1/2=.5
1/infinity=0

[Anonymous No.]

UNLIMITED ⑨ = CIRNO IS #1, THERE IS NO MORE DISCUSSION

[Anonymous No.]

I will just leave this here:
http://en.wikipedia.org/wiki/0.999......

>In mathematics, the repeating decimal 0.999... which may also be written as 0.9, 0.9̇ or 0.(9), denotes a real number that can be shown to be the number one. In other words, the symbols 0.999... and 1 represent the same number. Proofs of this equality have been formulated with varying degrees of mathematical rigour, taking into account preferred development of the real numbers, background assumptions, historical context, and target audience.

[Anonymous No.]

>>6178845
>calling yourself a mathematician
Well, Mr. Bright Spark Mathematician, I'm sure we can at least agree that ANYTHING besides 0 divided by 0 will actually be an amazingly large number, and not the infinitely small that you previously claimed it to be.

[Anonymous No.]

>>6178851
a/b=c
1/2=.5
b x c=a
2 x .5=1

1/infinity=0
infinity x 0=1

[Anonymous No.]

>>-9

Wait, what? I got -37.

[Anonymous No.]

>>6178851
By the way, I got to the last one because of your "if something approaches it, then it is that value!" logic.

[Anonymous No.]

>>6178858

Why does infinityx0 equal 1? Why not 7, or 1/2, or 7885.332...?

[Anonymous No.]

>>6178855
I dun goofed there, i's sowwies

[Anonymous No.]

The answer is: witches exist and Beatrice did it

[Anonymous No.]

>>6178861

5-6*6/2+4
5-6*3+4
5-18+4
5-14
-9

[hugh No.]

Some maths we can all agree on.

[Anonymous No.]

>>6178867
Because 1/infinity equals 0. The proof is in the post and >>6178851

[Anonymous No.]

>>6178862
>if something approaches it, then it is that value!
Dude, please try keep your inner retard in, the stench is atrocious.

What I said was that the limit would be that value. Do you know what limits are?

[Anonymous No.]

>>6178874
Any number divided by infinity equals zero, therefore, infinity times 0 is any number.

[Anonymous No.]

>>6178874

But the same proof applies to any other number.

[Anonymous No.]

>>6178878
No, because x times 0 is 0. So even if x is infinity it should be 0.

[Anonymous No.]

>>6178878
I'm pretty sure infinity times 0 is an indeterminate form.

[Anonymous No.]

>>6178878

[Anonymous No.]

>>6178887
Once again, I'm pretty sure 0 times infinity is an indeterminate form.

[Anonymous No.]

infinity - infinity = 0

[Anonymous No.]

Math can't handle infinity.

Except that this picture is infinitely hot.

[Anonymous No.]

>>6178889
I'm pretty sure I'm just fucking with his stupid logic.

[Shikieiki !!T3dW8SatkER No.]

>>6178895
infinity + 1 = infinity

[Anonymous No.]

>>6178895
Not true. That's only true if both infinities are at the same speed. If one is faster than the other, the answer could be infinity or -infinity.

[Anonymous No.]

Infinity doesn't exist. You can't apply it to mathematical concepts.

[Anonymous No.]

>>6178895

infinity - infinity = 0
infinity * 0 = 0
infinity * 0 = infinity - infinity
infinity+infinity*0= infinity
2*infinity = infinity/0
0 = infinity/0-2*infinity
0*0 = infinity-2*infinity
0=infinity

[Anonymous No.]

>>6178904
But we can at least approach it.

[Anonymous No.]

>>6178911
>divide by zero
>fail math forever

[Anonymous No.]

>>6178904

How's that complex numbers course going?

[Xerxes's Sealskin !!TxvOg0il1PS No.]

>>6178855

Anything divided by 0 is undefined. That's by definition.
You can't rightly call yourself any kind of mathematician.

Also, this thread is still going? Fuck.

[Xerxes's Sealskin !!TxvOg0il1PS No.]

>>6178904

Infinity exists as a concept. It is not, however, a number. It can be used much like a variable, though. There are also different degrees of infinity.

[Anonymous No.]

>>6178922
Please tell that to the person I was quoting. I was just going along with him.

[Xerxes's Sealskin !!TxvOg0il1PS No.]

>>6178936

Well, he thought that 1/x as x approaches 0 approaches infinitely small, which just shows that he can't think. You corrected that, but if he's going to disagree with x/0 being undefined, then he'd have to show an actual argument instead of just an assertion, and I'd expect any mathematician to do just that, instead of just calling himself a mathematician who disagrees with it.

Point is, this thread shouldn't be going on like this.

[Anonymous No.]

Solve your homework yourself, baka