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Where Did This Mathematics Go Wrong? - Education (3) - Nairaland

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Re: Where Did This Mathematics Go Wrong? by testament2000(m): 8:24am On Sep 24, 2021
BluntCrazeMan:
Dear Mathematicians in the house....
I need you all to look at the attached picture below, and point out the spot where the whole mathematics started going wrong.
..
Thanks..

Lol

Any php programmer in the house
Re: Where Did This Mathematics Go Wrong? by Tdotbluejays: 8:25am On Sep 24, 2021
cuteralph101:


10 (10 - 10) is not equal to 100
That line doesn't equal 100 though. When you expand:
10 (10 - 10) = 10.10 - 10.10

1 Like

Re: Where Did This Mathematics Go Wrong? by tctrills: 8:25am On Sep 24, 2021
BluntCrazeMan:
Dear Mathematicians in the house....
I need you all to look at the attached picture below, and point out the spot where the whole mathematics started going wrong.
..
Thanks..
the fifth line.
Re: Where Did This Mathematics Go Wrong? by SpatialKing(m): 8:26am On Sep 24, 2021
Tdotbluejays:

No. What he did was (x+y) (x-y) = x2 - y2.
Completely wrong

Here is the correct expansion
(x+y) (x-y) =x2-xy-yx+y2= x2+y2-2xy

3 Likes

Re: Where Did This Mathematics Go Wrong? by SmartPolician: 8:26am On Sep 24, 2021
BluntCrazeMan

As far as I am concerned, that calculation is okay. However, I think the fault is that you were applying rules were they shouldn't apply. For instance, you applied factorization rules when you were dealing with denominators and numerators. Mathematical rules have topics where they ate relevant.
Re: Where Did This Mathematics Go Wrong? by Tdotbluejays: 8:26am On Sep 24, 2021
hohafrank:
The first step to the question was the only wrong step,other steps are very logical down to the Q.E.D
Correct.
Re: Where Did This Mathematics Go Wrong? by fayomim: 8:27am On Sep 24, 2021
Stop proving nonsense, go and make money
Re: Where Did This Mathematics Go Wrong? by SpatialKing(m): 8:27am On Sep 24, 2021
SmartPolician:
BluntCrazeMan

As far as I am concerned, that calculation is okay. However, I think the fault is that you were applying rules were they shouldn't apply. For instance, you applied factorization rules when you were dealing with denominators and numerators.
The expansion too... Is completely wrong
Re: Where Did This Mathematics Go Wrong? by Tdotbluejays: 8:27am On Sep 24, 2021
SpatialKing:

Completely wrong

Here is the correct expansion
(x+y) (x-y) =x2-xy-yx+y2= x2+y2-2xy
No you are wrong.
See correction below.

(x+y) (x-y) =x2+xy-yx-y2= x2-y2

2 Likes

Re: Where Did This Mathematics Go Wrong? by Remix10(m): 8:27am On Sep 24, 2021
The difference of two squares formula states a^2-b^2=(a+b)(a-b) where a does not equal b. so it went wrong at 10^2-10^2

2 Likes

Re: Where Did This Mathematics Go Wrong? by DrayZee: 8:27am On Sep 24, 2021
Beloved3:
Sorry this section here in the pic below is mathematical incorrect.

You have divided zero by zero (0/0) and
and that cannot happen in mathematics. Dividing anything by zero is undefined i.e. leads to an unknown result.


Exactly.
He has looped back to the problem he was initially trying to solve.

1 Like

Re: Where Did This Mathematics Go Wrong? by dallyemmy: 8:28am On Sep 24, 2021
I think where it says (10 - 10)/(10 - 10). It is just like saying (x - x)/(x - x) or (0)/(0) which is equal to 0

SINCE IT HAS NO VALUE.

1 Like

Re: Where Did This Mathematics Go Wrong? by Hairic080(f): 8:28am On Sep 24, 2021
[size=15pt]Any figure divided by zero(0) is undefined[/size]
PERIOD!!!
Re: Where Did This Mathematics Go Wrong? by Nostradamus1: 8:28am On Sep 24, 2021
Inspiration007:
10(square) - 10(square) is not the same as (10+10) (10-10).


The mathematician failed to apply the law of the difference of 2 squares correctly.

7 years of Engineering no be waste sha o lol
They are the same sir
One is the difference of two squares while the other is 100-100 in square root form.There is no law that insists in difference of 2 squares applying to both numerator or denominator.

The answer is that using 100 is a mathematical fallacy because the solution only works for squares of numbers but not simple non-squares.

A common man way of answering this is by asking urself where 100 came from

1 Like

Re: Where Did This Mathematics Go Wrong? by SmartPolician: 8:30am On Sep 24, 2021
SpatialKing:

The expansion too... Is completely wrong

The pursuit of money has made me forget a lot of mathematics rules cheesy , but I think the two expansions are correct (I stand corrected). I think the problem was applying a rule where it should not be.
Re: Where Did This Mathematics Go Wrong? by Drizzy5001(m): 8:30am On Sep 24, 2021
Me and mathematics be like cat and dog.
I hate maths sad
Re: Where Did This Mathematics Go Wrong? by mountmoriah(m): 8:31am On Sep 24, 2021
criuze:
Oboy i no study mathematics but am sure nothing can come out of zero in relation to another zero



Just now like timxing buhari head with cbn givernor head and you're telling me its worth up to something


You dey waste your time
na zero make u fear pass because it is unknown and anything can come from it
Re: Where Did This Mathematics Go Wrong? by dallyemmy: 8:31am On Sep 24, 2021
xy is the same as yx. it is just like saying 2x3 = 3x2 which is equal to 6. Therefore, -xy + xy = 0
Tdotbluejays:

No you are wrong.
See correction below.

(x+y) (x-y) =x2+xy-yx-y2= x2-y2

1 Like

Re: Where Did This Mathematics Go Wrong? by Chairwoman: 8:31am On Sep 24, 2021
How 100 take turn 10.10??
Re: Where Did This Mathematics Go Wrong? by Premiumwriter2: 8:31am On Sep 24, 2021
The third step.

The denominator cannot be 10(10-10)
Re: Where Did This Mathematics Go Wrong? by Tdotbluejays: 8:32am On Sep 24, 2021
Drizzy5001:
Me and mathematics be like cat and dog.
I hate maths sad
I love maths cheesy
Re: Where Did This Mathematics Go Wrong? by Inspiration007: 8:32am On Sep 24, 2021
Nostradamus1:
They are the same sir
One is the difference of two squares while the other is 100-100 in square root form.There is no law that insists in difference of 2 squares applying to both numerator or denominator.

The answer is that using 100 is a mathematical fallacy because the solution only works for squares of numbers but not simple non-squares.

A common man way of answering this is by asking urself where 100 came from

Nicely put
Re: Where Did This Mathematics Go Wrong? by Gbogbowa: 8:32am On Sep 24, 2021
BluntCrazeMan:
Dear Mathematicians in the house....
I need you all to look at the attached picture below, and point out the spot where the whole mathematics started going wrong.
..
Thanks..
this is only possible in apc goverment
Re: Where Did This Mathematics Go Wrong? by philisto: 8:32am On Sep 24, 2021
You the whine my nipple oo
Re: Where Did This Mathematics Go Wrong? by Tomilola360: 8:32am On Sep 24, 2021
BluntCrazeMan:
Dear Mathematicians in the house....
I need you all to look at the attached picture below, and point out the spot where the whole mathematics started going wrong.
..
Thanks..

I ll prove you wrong if you ll come with your brain.

the answer however is in the very first expression

1 Like

Re: Where Did This Mathematics Go Wrong? by Tdotbluejays: 8:33am On Sep 24, 2021
Premiumwriter2:
The third step.

The denominator cannot be 10(10-10)
He factored out 10.
All he did was mago Mago maths but he hasn't violated any rule apart from the first line.
Re: Where Did This Mathematics Go Wrong? by Thescienceprof(m): 8:33am On Sep 24, 2021
To start with, there is no such expression as 0/0. It does not exist, or better still, it is indeterminate (to use appropriate mathematical term).

Now, on the right hand side, why did you apply difference of 2 squares to the numerator but then decided to factorise the denominator? Because, if you hadn't done that, you would have ended up at 1/1 giving you 1 as the result on the RHS. This goes again to prove the inconsistency and indeterminate nature of the expression on the LHS.
In summary, you haven't proved nothing! You have only played some pun on the figures. These are the kind of jokes we play back in school. A case of saying 1+1 = 10, if you work in modulo 2. It's all for fun but not necessarily correct.

1 Like

Re: Where Did This Mathematics Go Wrong? by BafanaBafana: 8:34am On Sep 24, 2021
Inspiration007:
10(square) - 10(square) is not the same as (10+10) (10-10).


The mathematician failed to apply the law of the difference of 2 squares correctly.

7 years of Engineering no be waste sha o lol
You sure?
Check again o.
Re: Where Did This Mathematics Go Wrong? by Angrymode: 8:34am On Sep 24, 2021
It went wrong as soon as (10 -10)/(10 - 10) was taken as equal to 1. Applying BODMAS, the operations inside the brackets must be taken cared of first before division can be done. Hence, (10 -10)/(10 - 10) is still 0/0 which is undefined.

The proof is wrong as simple BODMAS principle was not adhered to.
Re: Where Did This Mathematics Go Wrong? by Jostoman: 8:35am On Sep 24, 2021
You won't see people like Tinubu advocate, kaduna1stson, dead meat seller and all the BMC supporters here now because the topic is not about IPOB, ESN, or PDP.
Re: Where Did This Mathematics Go Wrong? by Inspiration007: 8:35am On Sep 24, 2021
grin
BafanaBafana:

You sure?
Check again o.

1 Like

Re: Where Did This Mathematics Go Wrong? by Stanweezy(m): 8:35am On Sep 24, 2021
Equation I dropped on this forum it didn't hit front page and some one plagiarized it no credit at all.

I posted this equation May 2019 and it didn't grace front page. Another moniker plagiarized it in the same nairaland and it's already on front page. See the link to mine

https://www.nairaland.com/5176879/it-been-proven-0-0


Cc: Lalasticlala
Cc: Dominique
Cc: Mynd44

I believed one of the rule of this forum has been broken

Attached is the picture of mine and the link to it on this forum.

1 Like

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