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#26 2018-09-29 02:18:12, last edited by azurepudding (2018-09-29 02:22:02)

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Re: Math geeks are too stupid to fix this

LukeM wrote:
ILikeTofuuJoe wrote:

Mathmeticans say 0/0 is invalid only because they don't want to violate that /0 is invalid. Proof 0/0 = 0:
0^2/0^1 = 0^1 = 0.

They aren't just doing it for the sake of it, 0/0 physically has to be undefined or the whole of maths doesn't work //forums.everybodyedits.com/img/smilies/tongue
I'm not so sure about 0^0, I haven't been able to find any concrete evidence for why it can't be 1 and a lot of people do seem to say they think it should be, but 0/0 definitely has to be undefined

0^0 = 0/0 tho

x^3/x^2 = x
x^3/x^3 = x^0 = 1
x^3/x^4 = x^-1 = 1/x

Right?  But what if x = 0?

0^3/0^2 = 0/0 = undefined
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

Anything to the power of zero equals itself over itself (x/x), so you can't have 0 to the power of zero cuz it equals 0/0.  You also cannot divide by any power of 0, unless you have some form of addition or subtraction to keep the denominator from totaling 0.


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#27 2018-09-29 02:21:08

ILikeTofuuJoe
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Re: Math geeks are too stupid to fix this

azurepudding wrote:
LukeM wrote:
ILikeTofuuJoe wrote:

Mathmeticans say 0/0 is invalid only because they don't want to violate that /0 is invalid. Proof 0/0 = 0:
0^2/0^1 = 0^1 = 0.

They aren't just doing it for the sake of it, 0/0 physically has to be undefined or the whole of maths doesn't work //forums.everybodyedits.com/img/smilies/tongue
I'm not so sure about 0^0, I haven't been able to find any concrete evidence for why it can't be 1 and a lot of people do seem to say they think it should be, but 0/0 definitely has to be undefined

0^0 = 0/0 tho

x^3/x^2 = x
x^3/x^3 = x^0 = 1
x^3/x^4 = x^-1 = 1/x

Right?  But what if x = 0?

0^3/0^2 = 0^1 = 0
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

Anything to the power of zero equals itself over itself (x/x), so you can't have 0 to the power of zero cuz it equals 0/0.

0^0 is 1 okay. But they really need to get rid of the undefined values. Not like theres not enough information.


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#28 2018-09-29 02:23:17

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Re: Math geeks are too stupid to fix this

ILikeTofuuJoe wrote:
azurepudding wrote:
LukeM wrote:
ILikeTofuuJoe wrote:

Mathmeticans say 0/0 is invalid only because they don't want to violate that /0 is invalid. Proof 0/0 = 0:
0^2/0^1 = 0^1 = 0.

They aren't just doing it for the sake of it, 0/0 physically has to be undefined or the whole of maths doesn't work //forums.everybodyedits.com/img/smilies/tongue
I'm not so sure about 0^0, I haven't been able to find any concrete evidence for why it can't be 1 and a lot of people do seem to say they think it should be, but 0/0 definitely has to be undefined

0^0 = 0/0 tho

x^3/x^2 = x
x^3/x^3 = x^0 = 1
x^3/x^4 = x^-1 = 1/x

Right?  But what if x = 0?

0^3/0^2 = 0^1 = 0
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

Anything to the power of zero equals itself over itself (x/x), so you can't have 0 to the power of zero cuz it equals 0/0.

0^0 is 1 okay. But they really need to get rid of the undefined values. Not like theres not enough information.

I made an edit as I made an error in one example and added some clarification.

And.. why?  If something cannot happen, it cannot happen- it's not because we just don't feel like it, it's because it cannot happen.


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#29 2018-09-29 02:31:50

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Re: Math geeks are too stupid to fix this

This is probably the most retarded post I've ever seen.

0 to the power of 0 is undefined, because 0 to the power of anything is 0, but anything to the power of 0 is 1, so 0^0 presents a conflict. Depending on the function, 0^0 could be either 0 or 1. Take this as an example of a function returning 1.

Take f(x) = x^x
lim (x -> 0) of f(x) = lim (x -> 0) of x^x = 0^0
Thus take M = lim (x -> 0) of x^x
ln M = ln [lim (x-> 0) of x^x]
ln M = lim (x -> 0) of (ln x^x)
ln M = lim (x -> 0) of (xln x)
ln M = lim (x -> 0) of [(ln x) / (1 / x)]

Take lim (x -> 0) of [(ln x) / (1 / x)] and apply L'Hôpithal's rule
lim (x -> 0) of [(1 / x) / (-x^(-2))]
lim (x -> 0) of -x = 0

thus
ln M = 0
for ln M = 0, we need e^0 = M
M = 1

In this case, x^x = 1, but could be anything else for another problem, thus being undefined.

PS: Square root of -1 does not exist, sqrt(-1) = i, i standing for "imaginary", it's not a real solution, it's an imaginary number.


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#30 2018-09-29 02:42:13

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Re: Math geeks are too stupid to fix this

We really need to make more math threads so that interneet teenagers can show off how much they know about math before being humiliated by a virtual anime girl.

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#31 2018-09-29 02:52:38

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Re: Math geeks are too stupid to fix this

ZeldaXD wrote:

This is probably the most retarded post I've ever seen.

0 to the power of 0 is undefined, because 0 to the power of anything is 0, but anything to the power of 0 is 1, so 0^0 presents a conflict. Depending on the function, 0^0 could be either 0 or 1. Take this as an example of a function returning 1.

Take f(x) = x^x
lim (x -> 0) of f(x) = lim (x -> 0) of x^x = 0^0
Thus take M = lim (x -> 0) of x^x
ln M = ln [lim (x-> 0) of x^x]
ln M = lim (x -> 0) of (ln x^x)
ln M = lim (x -> 0) of (xln x)
ln M = lim (x -> 0) of [(ln x) / (1 / x)]

Take lim (x -> 0) of [(ln x) / (1 / x)] and apply L'Hôpithal's rule
lim (x -> 0) of [(1 / x) / (-x^(-2))]
lim (x -> 0) of -x = 0

thus
ln M = 0
for ln M = 0, we need e^0 = M
M = 1

In this case, x^x = 1, but could be anything else for another problem, thus being undefined.

PS: Square root of -1 does not exist, sqrt(-1) = i, i standing for "imaginary", it's not a real solution, it's an imaginary number.

You don't understand so get out.


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#32 2018-09-29 02:53:15

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Re: Math geeks are too stupid to fix this

Regarding 0/0... take these two examples.

f(x) = (1-(x^2))/(2x-2)
lim (x -> 1) of f(x)
lim (x -> 1) of [(1-(x^2))/(2x-2)] = (1-1^2)/(2-2) = (1-1)/(2-2) = 0/0 which is undefined.
Now, apply L'Hôphital's rule and derivate:

lim (x -> 1) of [(0-2x)/(2-0)]
lim (x -> 1) of (2x/2)
lim (x -> 1) of (x/1)
lim (x -> 1) of x = 1

0/0 in this case is 1.

Let's look at another example where 0/0 is 0.

g(x) = (1 - cos(x))/(sin (x))
lim (x -> 0) of g(x)
lim (x -> 0) of [(1 - cos(x))/(sin (x))] = (1 - cos(0) / sin(0)) = (1 - 1) / 0 = 0/0
Now, apply L'Hôphital's rule and derivate:

lim (x -> 0) of [(sin(x))/(cos x)] = sin(0) / cos(0) = 0 / 1 = 0

0/0 in this case is 0.


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#33 2018-09-29 03:01:20

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Re: Math geeks are too stupid to fix this

ZeldaXD wrote:

Regarding 0/0... take these two examples.

f(x) = (1-(x^2))/(2x-2)
lim (x -> 1) of f(x)
lim (x -> 1) of [(1-(x^2))/(2x-2)] = (1-1^2)/(2-2) = (1-1)/(2-2) = 0/0 which is undefined.
Now, apply L'Hôphital's rule and derivate:

lim (x -> 1) of [(0-2x)/(2-0)]
lim (x -> 1) of (2x/2)
lim (x -> 1) of (x/1)
lim (x -> 1) of x = 1

0/0 in this case is 1.

Let's look at another example where 0/0 is 0.

g(x) = (1 - cos(x))/(sin (x))
lim (x -> 0) of g(x)
lim (x -> 0) of [(1 - cos(x))/(sin (x))] = (1 - cos(0) / sin(0)) = (1 - 1) / 0 = 0/0
Now, apply L'Hôphital's rule and derivate:

lim (x -> 0) of [(sin(x))/(cos x)] = sin(0) / cos(0) = 0 / 1 = 0

0/0 in this case is 0.

Who knew a little 0 could cause so much trouble.


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#34 2018-09-29 11:09:13

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Re: Math geeks are too stupid to fix this

ILikeTofuuJoe, each mathematical operation has a domain for the values involved.

For the dividing operation a / b, a ∈ ℝ, b ∈ ℝ*

For the exponential operation a ^ 0 = 1, a ∈ ℝ*

Where ℝ* is (-∞, 0) ∪ (0, ∞)


There are rules for mathematical operations. This rules aren't arbitrary but deduced. If you violate a rule you violate the principles and the logic behind the operation thus the result won't be valid.


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#35 2018-09-29 11:10:30, last edited by LukeM (2018-09-29 11:20:11)

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Re: Math geeks are too stupid to fix this

azurepudding wrote:

0^0 = 0/0 tho

x^3/x^2 = x
x^3/x^3 = x^0 = 1
x^3/x^4 = x^-1 = 1/x

Right?  But what if x = 0?

0^3/0^2 = 0/0 = undefined
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

Anything to the power of zero equals itself over itself (x/x), so you can't have 0 to the power of zero cuz it equals 0/0.  You also cannot divide by any power of 0, unless you have some form of addition or subtraction to keep the denominator from totaling 0.

Thats just a pattern though, not the definition, you could also define x^n as 1 * x * x * x (n times), in which case 0^0 would be 1. You could also take it to the extreme and use that to say that 0^1 is undefined (x^3/x^2 = 0/0 = 0^1 = undefined), which obviously isn't true.

ZeldaXD wrote:

This is probably the most retarded post I've ever seen.

0 to the power of 0 is undefined, because 0 to the power of anything is 0, but anything to the power of 0 is 1, so 0^0 presents a conflict. Depending on the function, 0^0 could be either 0 or 1. Take this as an example of a function returning 1.

Take f(x) = x^x
lim (x -> 0) of f(x) = lim (x -> 0) of x^x = 0^0
Thus take M = lim (x -> 0) of x^x
ln M = ln [lim (x-> 0) of x^x]
ln M = lim (x -> 0) of (ln x^x)
ln M = lim (x -> 0) of (xln x)
ln M = lim (x -> 0) of [(ln x) / (1 / x)]

Take lim (x -> 0) of [(ln x) / (1 / x)] and apply L'Hôpithal's rule
lim (x -> 0) of [(1 / x) / (-x^(-2))]
lim (x -> 0) of -x = 0

thus
ln M = 0
for ln M = 0, we need e^0 = M
M = 1

In this case, x^x = 1, but could be anything else for another problem, thus being undefined.

PS: Square root of -1 does not exist, sqrt(-1) = i, i standing for "imaginary", it's not a real solution, it's an imaginary number.

What about 0^-1? (its not 0)

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#36 2018-09-29 11:32:53

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Re: Math geeks are too stupid to fix this

HeyNK wrote:

We really need to make more math threads so that interneet teenagers can show off how much they know about math before being humiliated by a virtual anime girl.

I don't get what the point of being both off-topic and toxic on a thread about math is going to accomplish. Either try to help come up with a solution or just leave. Where's "what you know doesn't matter" or "let's let all the kiddoes try before the real professionals get here" getting you in this thread? Nothing. Goodbye.

ILikeTofuuJoe wrote:

You don't understand so get out.

This isn't helping anyone either.


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#37 2018-09-29 15:14:14

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Re: Math geeks are too stupid to fix this

The whole point of this topic is I'm trying to say: Since x^m / x^n = x^(m-n), say x=0, m1=1, m2=2, and n=1. We get two equations: 0^1 / 0^1 = 0^(1-1), 0^2 / 0^1 = 0^(2-1). Simply both equations, we get: 0 / 0 = 0^0, 0 / 0 = 0^1. Since 0^0 = 1, So 1 = 0.


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#38 2018-09-29 15:33:03, last edited by Trytu (2018-09-29 15:37:26)

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Re: Math geeks are too stupid to fix this

azurepudding wrote:
Trytu wrote:
I wroted

Here is how I understand it:

x^0 is a simplified way of writing x^2/x^2 (or any other exponent over the same).  You subtract the exponents and remove the denominator and end up with x^0.  Tho an even simpler (and more obvious) way is simplifying this to just 1.  BUT what if x equals 0?  0^0 alone seems like it checks out, but that'd mean you could also write it as 0^2/0^2, which is also equal to 0/0 which is division of zero.  So I'd think 0^0 would be undefined.  Anything to the 0th power equals itself over itself, which results in 1 in seemingly every case except for 0.

azurepudding wrote:

0^3/0^2 = 0/0 = undefined
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

ILikeTofuuJoe wrote:

The whole point of this topic is I'm trying to say: Since x^m / x^n = x^(m-n), say x=0, m1=1, m2=2, and n=1. We get two equations: 0^1 / 0^1 = 0^(1-1), 0^2 / 0^1 = 0^(2-1). Simply both equations, we get: 0 / 0 = 0^0, 0 / 0 = 0^1. Since 0^0 = 1, So 1 = 0.

one simple mistake
0^3  and 0^2 and 0^x (when x<0) equals to 0, same as in my brackets (2+3-5) and (5+3-8)
that's why these transformations doesn't work
in that cases, if you want get right result, you have to use "order of operations"
that mean firstly do brackets, and powers/roots, ect...
else it won't work,
0^0 isn't undefined, it's equals to 1
btw you compared 0/0 to 0^0, it's quite like my 76/120 = 49/120
but i naturaly agree with 0/0 is undefined


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#39 2018-09-29 15:36:18

ILikeTofuuJoe
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Re: Math geeks are too stupid to fix this

Trytu wrote:
azurepudding wrote:
Trytu wrote:
I wroted

Here is how I understand it:

x^0 is a simplified way of writing x^2/x^2 (or any other exponent over the same).  You subtract the exponents and remove the denominator and end up with x^0.  Tho an even simpler (and more obvious) way is simplifying this to just 1.  BUT what if x equals 0?  0^0 alone seems like it checks out, but that'd mean you could also write it as 0^2/0^2, which is also equal to 0/0 which is division of zero.  So I'd think 0^0 would be undefined.  Anything to the 0th power equals itself over itself, which results in 1 in seemingly every case except for 0.

azurepudding wrote:

0^3/0^2 = 0/0 = undefined
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

one simple mistake
0^3  and 0^2 equals to 0, same as in my brackets (2+3-5) and (5+3-8)
that's why these transformations doesn't work
in that cases, if you want get right result, you have to use "order of operations"
that mean firstly do brackets, and powers/roots, ect...
else it won't work,
0^0 isn't undefined, it's equals to 1
btw you compared 0/0 to 0^0, it's quite like my 76/120 = 49/120
but i naturaly agree with 0/0 is undefined

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution


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#40 2018-09-29 15:39:09

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Re: Math geeks are too stupid to fix this

ILikeTofuuJoe wrote:

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution

It really isn't, you can prove that there CAN BE NO SINGLE SOLUTION (at least for 0/0), so it physically has to be undefined, its not just us saying we don't know what it is, we know for certain that there is no answer.

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#41 2018-09-29 15:41:30

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Re: Math geeks are too stupid to fix this

LukeM wrote:
ILikeTofuuJoe wrote:

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution

It really isn't, you can prove that there CAN BE NO SINGLE SOLUTION (at least for 0/0), so it physically has to be undefined, its not just us saying we don't know what it is, we know for certain that there is no answer.

You are saying things that have multiple solutions is undefined, you are wrong.


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#42 2018-09-29 15:44:03, last edited by Trytu (2018-09-29 15:55:16)

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Re: Math geeks are too stupid to fix this

ILikeTofuuJoe wrote:

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution

just stop dividing by 0 forms



ILikeTofuuJoe wrote:

You are saying things that have multiple solutions is undefined, you are wrong.

i agree with it
sum of 1-1+1-1+1-1+1-1+1-1+1-1+1-1...
has 3 results
first is 0, second is 1, and third is 1/2
because for example  in 1-1+1-1+1-1+1-1+1-1+1-1... we can put brackets like (1-1)+(1-1)+(1-1)+(1-1)... and 1-1 = 0, so 0+0+0+0...=0
we can also put brackets one number later like 1+(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+(1-1) so 1+0+0+0+0+0...=1
or for example S=1-1+1-1+1-1+1-1+1-1+1-1+1-1...
so 1 - S = 1 - (1-1+1-1+1-1+1-1+1-1+1-1+1-1...) that one minus reverse all operators  (-1+1-1+1-1+1-1+1-1+1-1+1...), and changes into +, so 1-1+1-1+1-1+1-1+1-1+1-1+1-1+1-1... = S
we got same thing that we started so 1 - S = S, so 1 = 2S, so S =1/2


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#43 2018-09-29 15:47:25

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Re: Math geeks are too stupid to fix this

Trytu wrote:
ILikeTofuuJoe wrote:

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution

just stop dividing by 0 forms

No I will not.


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#44 2018-09-29 17:11:31

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Re: Math geeks are too stupid to fix this

ILikeTofuuJoe wrote:
Trytu wrote:
ILikeTofuuJoe wrote:

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution

just stop dividing by 0 forms

No I will not.

And this is your mistake


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#45 2018-09-30 00:23:00

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Re: Math geeks are too stupid to fix this

guys I can prove that 1 = 2

watch this:

0 / 0 = 2
but 0 / 0 = 1

therefore 1 = 2

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#46 2018-09-30 00:52:44

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Re: Math geeks are too stupid to fix this

HeyNK wrote:

We really need to make more math threads so that interneet teenagers can show off how much they know about math before being humiliated by a virtual anime girl.

What the heck? Are you referring to me? Are you saying you want me to humiliate them?
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#47 2018-09-30 01:32:09

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Re: Math geeks are too stupid to fix this

ILikeTofuuJoe wrote:
ZeldaXD wrote:

This is probably the most retarded post I've ever seen.

0 to the power of 0 is undefined, because 0 to the power of anything is 0, but anything to the power of 0 is 1, so 0^0 presents a conflict. Depending on the function, 0^0 could be either 0 or 1. Take this as an example of a function returning 1.

Take f(x) = x^x
lim (x -> 0) of f(x) = lim (x -> 0) of x^x = 0^0
Thus take M = lim (x -> 0) of x^x
ln M = ln [lim (x-> 0) of x^x]
ln M = lim (x -> 0) of (ln x^x)
ln M = lim (x -> 0) of (xln x)
ln M = lim (x -> 0) of [(ln x) / (1 / x)]

Take lim (x -> 0) of [(ln x) / (1 / x)] and apply L'Hôpithal's rule
lim (x -> 0) of [(1 / x) / (-x^(-2))]
lim (x -> 0) of -x = 0

thus
ln M = 0
for ln M = 0, we need e^0 = M
M = 1

In this case, x^x = 1, but could be anything else for another problem, thus being undefined.

PS: Square root of -1 does not exist, sqrt(-1) = i, i standing for "imaginary", it's not a real solution, it's an imaginary number.

You don't understand so get out.

me irl


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#48 2018-09-30 02:18:47

HeyNK
Member
Joined: 2017-04-07
Posts: 1,318

Re: Math geeks are too stupid to fix this

NorwegianboyEE wrote:
HeyNK wrote:

We really need to make more math threads so that interneet teenagers can show off how much they know about math before being humiliated by a virtual anime girl.

What the heck? Are you referring to me? Are you saying you want me to humiliate them?
https://i.imgur.com/93eYNPo.png

No, I'm talking about zeldaxD. But i'd love to watch you, my favourite everybody edits virtual anime girl, humiliate internet teenagers for money.

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#49 2018-09-30 07:34:49

azurepudding
Member
Joined: 2016-11-18
Posts: 726

Re: Math geeks are too stupid to fix this

Trytu wrote:
azurepudding wrote:
Trytu wrote:
I wroted

Here is how I understand it:

x^0 is a simplified way of writing x^2/x^2 (or any other exponent over the same).  You subtract the exponents and remove the denominator and end up with x^0.  Tho an even simpler (and more obvious) way is simplifying this to just 1.  BUT what if x equals 0?  0^0 alone seems like it checks out, but that'd mean you could also write it as 0^2/0^2, which is also equal to 0/0 which is division of zero.  So I'd think 0^0 would be undefined.  Anything to the 0th power equals itself over itself, which results in 1 in seemingly every case except for 0.

azurepudding wrote:

0^3/0^2 = 0/0 = undefined
0^3/0^3 = 0/0 = 0^0 = undefined
0^3/0^4 = 0^-1 = 1/0 = undefined

ILikeTofuuJoe wrote:

The whole point of this topic is I'm trying to say: Since x^m / x^n = x^(m-n), say x=0, m1=1, m2=2, and n=1. We get two equations: 0^1 / 0^1 = 0^(1-1), 0^2 / 0^1 = 0^(2-1). Simply both equations, we get: 0 / 0 = 0^0, 0 / 0 = 0^1. Since 0^0 = 1, So 1 = 0.

one simple mistake
0^3  and 0^2 and 0^x (when x<0) equals to 0, same as in my brackets (2+3-5) and (5+3-8)
that's why these transformations doesn't work
in that cases, if you want get right result, you have to use "order of operations"
that mean firstly do brackets, and powers/roots, ect...
else it won't work,
0^0 isn't undefined, it's equals to 1
btw you compared 0/0 to 0^0, it's quite like my 76/120 = 49/120
but i naturaly agree with 0/0 is undefined

But anything to the power of 0 is the same as that same number over itself.  That's why in almost every case, x^0 is 1, because x^0=x/x.  Plug in 1, 2, 3, 5, 10, a million, you will always end up with 1.. except when you plug in 0, as it results in a division of 0.  So 0^0=0/0, making both undefined.

I also don't see the error on my part.. but one you made was "0^3  and 0^2 and 0^x (when x<0) equals to 0".. if x is less than 0 there, say -1, you've have 0^-1 which is the same as 1/0, and later on you said division of 0 gets you undefined.


ILikeTofuuJoe wrote:

My point is undefined is absolutely them being lazy and not think of a solution an ACTUAL solution

Again, it's not "because we don't feel like it," it literally has no answer.

Take this example:

You take any number and divide it by 3. 6/3=2, and 2*3=6 to get 6 again.
Now replace 3 with the number 0.
You take 6 again and divide it by a 0.  6/0=x, and x*0=6
If x is not undefined, what is x?  What number times 0 will get you 6?


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