#help-19
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Doing this is probablyy not the way to go since too verbose
But I’m running out of ideas
Our number is a multiple of a perfect square
But that doesn’t help us that much
Would anyone have ideas?
<@&286206848099549185>
Maybe a step that narrows everything down a bit is to notice that your product on the left is bigger than the sum of the digits to the 5th power. Therefore, the digits have to be less than or equal to 6
That's a good point (because 7^5 > 10000)
Although I'm not sure how I could use that information other than accelerating my python script to find everything
We can go further to less than or equal to 5
@fickle laurel Has your question been resolved?
Why?
5000 would be greater than 5^5=3125
So left hand side bigger than right hand side
So I don’t think we can bound similarly to what we previously did?
Ah
Fair enough
Good point
Does make the search easier but still ain’t convinced that’s what my teacher suggested with analytical solution
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i can help
<@&268886789983436800> troll
No
@lilac viper Has your question been resolved?
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I'm having trouble with the highlighted part
I vaguely remember learning how to do this type of problem but I don't remember the reason why it works 😅
@raw jewel Has your question been resolved?
<@&286206848099549185>
?
I could use some help with this problem 
@raw jewel Has your question been resolved?
?
bro I never asked for help
💀
like icl last time I touched this 1-2 years ago
🙏
ussful though
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<@&286206848099549185>
i need help with (9 + 1) x 4 + sin(5) % 23 - 3 x 56 - 8 (x) + 452 x 2 (6 - 3) % 3.563 - 1 x (67+4) - 0 x 2 % 5 - (1) (1) (1) 0
$(9 + 1) \times 4 + \sin(5) \mod 23 - 3 \times 56 - 8x + 452 \times 2 \times (6 - 3) \mod 3.563 - 1 \times (67+4) - 0 \times 2 \mod 5 - (1)(1)(1)0$
Samuel
This?
yes
What part you don’t know to do!
times 4 + \sin(5)
That is because you don’t do that
Every time you see a + or a -, what’s behind is a whole thing
So the first + u see
Everything behind it is only one thing
In this case (9+1) 4
You solve to get a whole number and then you have
ah i see
I gotta go now, sorry
k
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$\int x^2 \sqrt{x-1}dx$
Why am. I here
Why am. I here
it should work
yeah, but is there any more elegant sub I can use
WA does the same thing
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This is nonsense, stop trolling
I'm not trolling
What are you studying?
🙄
same
You didn’t even ask a question, stop wasting others time
thanks for the help
As I thought, u don’t even know what to ask xd
please don't waste my time...i posted my question...i need help with that derivative...
<@&286206848099549185>
Can you help me with this derivative of the image?
What have you tried?
Surely with your economics PhD studies, you would have tried something out wouldn't you?
I don't understand the ostil tone...
It's not hostile, I'm genuinely asking what you've tried
Get ready xd

Great then you're all set
thanks
No problem! Anything else?
you can't help me...
What do you mean? You've computed both factors of the chain rule.
So it should be elementary for such an astute student as yourself to compute the derivative by applying the chain rule you started yourself!
Unless taking a product is outside the expertise of an economy graduate student, in which case you might want to look into this video 👍 https://youtu.be/GIdXklSQPAI
Long Multiplication
This video will teach you how to do long multiplication. Knowing how to do long multiplication is an important skill to know and can be learned very easily with this video. Watch and see the different steps to multiply 2 and 3 digit numbers with one another.
--Subscribe to Kids Learning Videos--
http://www.youtube.com/su...
Bruh…
Or this one! It's my jam https://youtu.be/CcDGRLosAf0?feature=shared
Discover everything a NUMBEROCK subscription has to offer!
FREE TRIAL LINK: https://learnmore.numberock.com/free-mfr.
»»-------------¤-------------««»»-------------¤-------------««
Thank you for watching our Multiplying Fractions Song.
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- Number Notes | Highly-visual math worksheets that integrate dr...
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Cheers lad
Stop being condescending
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Condescending? This person was quite clearly a troll making everyone here lose their time.
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Hi community, I'm trying to use the finite element method to get laplacing for my 2d image, could you help me please?
I see on wikipedia there are two methods:
the 5 point of
0 1 0
1 -4 0
0 1 0
Then the 9 point
0.25 0.5 0.25
0.5 -3 0.5
0.25 0.5 0.25
But then there is another version https://www.karlsims.com/rd.html that says it's got to be
0.05 0.2 0.05
0.2 -1 0.2
0.05, 0.2, 0.05
Which one should I use? I saw on wikipeadia that the 9 point is better for accuracy, but what's the difference between the two 9 point filters here?
Thanks very much🙏
I'm reading this wikipedia link https://en.wikipedia.org/wiki/Discrete_Laplace_operator
In mathematics, the discrete Laplace operator is an analog of the continuous Laplace operator, defined so that it has meaning on a graph or a discrete grid. For the case of a finite-dimensional graph (having a finite number of edges and vertices), the discrete Laplace operator is more commonly called the Laplacian matrix.
The discrete Laplace op...
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How do I graph x^3+8x^2-11x-12?
I think I'm supposed to factor it but I forgot?
forgot what?
Forgot how to factor cubic functions?
maybe try the rational root theorem?
@storm wharf Has your question been resolved?
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i need help with this one
i have prelucrated the sum, and it got me to sum of other junk, so I think it is not telescoping at all
@hot fable Has your question been resolved?
<@&286206848099549185>
$\text{Remind that:}\text{ }\text{ }e^{x}=\sum_{n=0}^{\infty}\frac{x^{n}}{n!}\text{ }\text{ }\text{ for }\text{ }x\in \mathbb{R}$
Joanna Angel
and now think about how to use this fact
i had worked it out, but I used
e = 1/0!+1/1!+1/2!+...
the limit of series is 5e
thx
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The area of a small rectangular window is 306 cm2
. If the length exceeds the width by
1 cm, what are the dimensions of the window?
I have tried substituting and I ended up getting stuck at w^2 + w = 306
What am I missing in my understanding of substitution problems like these?
hang on, is it 306 cm or 308 cm?
yeah looks like it lol
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I watched the video but it doesn’t correlate. I’m not sure
<@&286206848099549185>
When doing a question like this, it is important to identify three big things.
Speed, distance, and time.
Which of the three do you know?
@cinder basalt
I know all
I know the speed equations
And how to apply it
In this question
And you have to use trigonometry
Its is, the example video showed it
Ok, so you are supposed to use trig
Ok
Yes
Gimme one sec
Okay
I'll draw a figure
By the way, here the example question says west but the actual question im doing says south
It’s because the bearing can only be measured starting from north going clockwise
I’m not entirely sure actually if it’s important
Oh I never thought about it like this
Do you know the trig ratios?
yes is it cosine to use
The hypotenuse
Actually is it tan?
Okay
Ohh
So we have opposite
so we need to find the hypotenuse
We want hypotenuse
sine
148-90?
Which is?
so $\sin(58^\circ) = \frac{opp}{hyp}$
Dork9399
I got 27.194
,w 27/sin(58 deg)
Thats radians
oh is that wrong
There are two angle measuring systems
would it be different on my calculator
Radians and degrees
ohhh
and we can recalculate sin(58) so that we wont make a mistake because we rounded
,w 27/(6.7 * sin(58 deg))
im confused because
When I did 27/sin58
I got a different ans
Even on my calculator rn
Your calculator is set to radians as well
oh
Try pressing mode and see if you can change "rad" to "deg"
Okay
ohh I did it now
How do I know if it’s supposed to be in radians or degrees
It says to 1.dp so is the answer 4.8?
Yes
If you see the little circle symbol $x^\circ$ then it's deg
Dork9399
If you don't then its radians
ohh it’s because in school they never taught us to change it
ah i see
@cinder basalt Has your question been resolved?
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Can you explain ratios and rates
Thank you
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Anyone have an easy way to remember eulerian vs hamiltonian path? (all edge vs all vertice)
Euler, E, Edge
Kill me
hamiltonian, like alexander hamilton, alexander hamilton fought a duel, duels are fought with pointy things, vertices are pointy
hello
DAMN NICE ONE
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can anyone help me with this, is it possible to do by using the x^2 + y^2 = r^2 formula?
you have tell whether the statement is true or false
yes you can
how?
what's the distance between (5,0) and (0,0)
or do this
to see what circle it would be at
so with this method it would 84=25
i have to uuse the non-graph method
just see what circle (6.8) would lay in
like
green one
but i have to solve without graphing
so like
mhm
you can find the radius
using calculator
√(8^2 + 6^2)
why square root
that's radius
mhm
what do i do after this
draw a triangle
triangle?!
a right triangle to find the radius
it's a triangle with base 6 and height 8
so c^2 = 6^2 + 8^2
c = √(6^2 + 8^2)
so square root of 84
no sqrt of 100
what does that mean
10 is greater than 5
ye ik that but what i am i supposed to use that info for?
like if greater does it mean it lies outside or smthing?
yes
if you have a point on a circle of radius 10
it's going to be outside a point on a circle of radius 5
so basically we just found the distances between the points and compared them
to find out whether it lies on the circle or not right?
mhm
Hey can anyone help
ofc
what's the distance between (-2,4) and (3,5)
sqr root of 26
and also can we solve using the formula
x^2+y^2=r^2
so basically -2 squuared plus 4 squared should be 6^2
so it is 32 is not equal to 36 so it is false?
@summer river
mhm
,w distance between (-2,4) and (3,5)
I think so
are you sure
????
i feel like its wrong
can anyone here tell me if my method is correct?
@paper moth Has your question been resolved?
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I'm struggling to figure out how to get the bounds of this integral here
I know how to properly plug in G for given x and y but finding the bounds is a little more challenging than the ones I had done previously
@night heron Has your question been resolved?
I plugged in y bounds as a->b and x bounds as 1->5 and it worked ig
Oh well
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a^(b/c) is equivalent to the cth root of a^b.
So 2 √2 ^3? For the first one ?
@real breach Has your question been resolved?
radical form could also be sqrt(8)
cuz you do (2^3)^(1/2)
8^(1/2)
I’m confused
@real breach Has your question been resolved?
@real breach Has your question been resolved?
Use a calculator to check your work
,calc (sqrt(2))^3
Result:
2.8284271247462
,calc 2^(3/2)
Result:
2.8284271247462
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for question b)
would it be correct to say that the number of successful outcomes are 1, and the number of possible outcomes are 52c5. so the correct answer would be 1/52c5?
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Depending on the parameter a, solve the system of equations:
it is quite confisuing for me because the maximal minor doesn't depend on a
$\text{jezeli }\text{ }2a-1\neq0\text{ }\text{ wtedy z tw, Kroneckera-Cappellego }\\\text{uklad ma nieskonczenie wiele rozwiazan zaleznych od 1 parametru z}\\\text{bo rzad macierzy jest 2}$
Joanna Angel
a jezlei a = 1/2, wtedy latwo zzauwzyc, ze ulad jest sprzeczny, o ile nie pomylilam sie w pamiecię 🙂 haha, sprawdz
a skad jest to 2a-1
bo z tego co widze moge policzyc minor 2x2 bez a
a zatem rzedy sa rowne
ilosc rzedow jest mniejsza od ilosci niewiadomych czyli mam nieskonczenie wiele rozwiazan jednej postaci
i moze ona byc zalezna od zmiennej x i zawierac parametr a
2a - 1, t wartosc pierwszego minora
ja wybeiram najlatwiej
tam gzie a
gdzie*
pirwsza i druga kolmna
twora minor o wartosci 2a - 1
rzad jest maksyamalnie 2
wiec wybeiram dowolny ktory daje 2
wlasnie nie wiem jak podejsc do rozwiazania bo pytanie nie jest o ilos rozwiazan tylko o rozwiazanie
ale musisz tak dyskutowac
rozxwiazanie uladu jezeli masz parametr
czyli:
- 2a - 1 nie jest zero, wtedy rzad jest 2
czyl uklad ma nieskonzcenie wiele rozwiazan zaleznych do 1 parametru ktory
wybeirasz jako z
iw edy
wyliczassz x i y za pomoca z
x = ...cos z
y = ... cos z
coś
🙂
antomias jezeli
a = 1/2
to recznie
wkjaldasz
mnozysz przez 2
i masz
x + 2y + 2z = 4
i wtddy rozwiazujwesz uklad
nie bedzie sprzeczny
czyli nieskonzenie tez
zresztą policz dla a = 1/2
zeby imec pewnosc
tez mozesz
z tym ze
kronecker wymaga rownosci rzedów, ale tu jest ok
czyli tobie wychodzi , chyba,z e zawsze masz jeden parametr neizaleznid od a, dla dowolnego a rzeczywistego
to samo co bsy mial z mej sugestii tez
czyli realnie w tym przykladzie nie musze sie nawet specjalnie przejmowac tym a
tak bo udalo sie znzlezc minor, ktory daje tobie rzad 2
ale nei zawwsze tak
bywa
aj to robie automatycznie
takj tak poprostu wlasnie mylace bylo dla mnie polecenie, bo sugeruje ze cos od tego a moze zalezec, i chcialem sie upewnic czy dobrze robie
dzieki
prosze)
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Query regarding vector spaces..
The vector obtained by plugging values into say property 7, does it need to satisfy the original condition?
Taking this question as example; if we take values of u,v which satisfy x+y+z=0
does c(u+v) also need to satisfy x+y+z=0?
do you mean to ask whether you need to verify this?
because no, you don't -- assuming axioms 1 and 6 are satisfied.
I know that we need to verify c(u+v)=cu+cv
solving both sides would give us a vector, LHS = RHS means that the property is satisfied, but I'm just curious whether the obtained vector needs to fulfil the original condition which applies to u,v i.e x+y+z=0
If yes, does it extend to other properties as well? Does the zero vector need to satisfy x+y+z=0 as well for the set to form a vector space?
think you are trying to mix the closure axioms (1 and 6) in with everything
Implying that the results from 2,3,7,8,9,10 don't need to lie in V?
LHS=RHS is sufficient
help pls
Occupy a new channel por favor 🙏
c(u + v)
And
cu + cv
Need to be the same vector.
Note that you have this for free, because this holds for all members of R³, not just the ones where x + y + z = 0
I know
but the vector which is c(u+v) or cu + cv doesn't need to lie in V, right
Well, u and v are in your space, so u + v must be as well, by def 1.
Likewise if u + v are in there, c(u + v) is, by def 6.
So yes, if u and v are vectors such that x + y + z = 0, then it must be the case that c(u + v) is also such a vector.
The same applies to property 8.9?
Note that property 7 played no part in my derivation
So I'm not certain what you want to show about 8 and 9
my query was just that
for the LHS=RHS conditions / properties
whatever resulting vector is obtained from it
does it need to lie in V i.e fulfil the condition which is x+y+z=0 in this case, for V to be a vector space?
If u is a member of the vector space, then (c + d)u is as well
By def 6
(cd)u is as well
It would not be a vector space!
As yes, we would need (cd)u to be a member, if u is.
ah alright, so we don't need to bother checking that since u,v lie in V
but that's only for the given condition which is a rather convenient one (x+y+z=0)
makes sense I suppose. Thank you for your time and assistance.
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how do i get g(g(x))
i got somewhat like this but idk how to simplify it
replace each x with g(x), then replace each g(x) with the function expression
the final answer is -1/x
yes, this
im stuck there
just simplify
i tried but i prob did sm mistkaes i cant get the answer
what does $\frac{x-1}{x+1} - 1$ simplify to?
waris
i genuinely have no idea how to simplify that. my bad
can you simplify $\frac12 + 1$?
waris
i'd use calculator which is 3/2
you can't do it by hand? : |
indeed, it is
wait
hmm
isnt it like
cross mutiply
multiply
and then add
i dont rlly rememebr it
alright, let's learn how to add fractions
let's say you have two fractions $\frac{a}b$ and $\frac{c}b$
waris
yes
they both have the same denominator, right?
yes, b
let's add them.
$$ \frac{a}b + \frac{c}b $$
This simply evaluates to $$ \frac{a + c}b $$
waris
i see
the rule is this: if two fractions have the same denominator, we can add the numerators and divide by the denominator
got it
time for an exercise. simplify $\frac{1}3 + \frac23 + \frac33$
waris
thats just gonna give ((1+2+3)/3) sorry idk how to use the texit bot
you don't have to use the bot, just give me a simplified answer
6/3=2
very good
what if theres variable
we're gonna come to that
okay
now, let's try and add $\frac{1}2 + \frac{1}4$
waris
wait
we don't have same denominators now, do we?
yes?
this is how my elementary teacher taught me 😭
i dont mind if u wanna teach another way
what he taught you is an algorithm
what i'm gonna teach you is what goes under the hood
let's write that sum differently. $1\cdot\frac{1}2 + \frac{1}4$
waris
indeed it doesn't. because multiplying by 1 does nothing to a number
now... what does $\frac{2}{2}$ simplify to?
waris
just 1
what does $\frac33$ simplify to?
waris
also 1
what does any $\frac{a}{a}$ simplify to, if $a$ is any number?
waris
its also 1
waris
waris
indeed
very good !
i see
so it becomes $\frac22\cdot \frac12 + \frac14$
waris
which becomes $\frac{2}{4} + \frac14$
waris
now we can add the usual way
and we have the same denominator
indeed
correct !
wow that was easier
let's add $\frac12 + \frac13$
waris
wait wait what
what whole number can we multiply 2 by to make it 3?
indeed, there's none
that's not a whole number
can we multiply 3 with any whole number to make it 2?
nope
themselves?
no i mean.. let's say there's a number a. then 3 divides a as well as 2 divides a
can you think of such a number?
i cant
what about 6?
indeed
6 divides both
in general, the product of two numbers is always divisible by those numbers
remember this
now let's back to our sum
so how do i add this
$\frac12 + \frac13$
waris
we want to make the denominator the product of the two denominators
what do we multiply 2 by to make it 6?
3
very good. so it becomes $\frac36 + \frac13$
waris
indeed
2/6
waris
((3+2)/6)
now we can add it the usual way
5/6
let's add $\frac{a}b + 3$
waris
what are our denominators?
b and?
do you remember this?
i have a hard time trying to understand what does that even mean
did you use this fact?
no 🙏
do you know what it means for p to be divisble by q?
q/p ??
it means p/q is a whole number
oh
p can be divide by q
and the answer will give a whole number
is what it means
here's what it means: let x and y be two numbers. if we want a number k which is divisble by both x and y (that is, both k/x and k/y are whole numbers), the we can find such a number by simply taking the product of x and y.
what is the produc tof x and y?
does that mean both x and y is divisible by k
no, it means k is divisble by both x and y
so its like k/x and k/y
indeed
now, tell me, what's the product of x and y?
what does product even mean in mathematics
: |
IM SORRY 😭 🙏
the number you get by multiplying two numbers is called the product of those two numbers
now do you know what a product is?
"by multiplying two numbers" these 'two numbers' is the same number
any two numbers
right
no, they don't have to be the same
although they can be
but it's not necessary
hm
whats the product of 2 and 3
issit 6
i have no idea im just guessing
what do you get when you multiply 2 and 3?
yes
so product basically means multiply
i just told you what a product is, why are you having to guess 
yes
im having a hard time
okay
so
lets get back
to where were we before
what's the product of 4 and 8?
what's the product of 3 and 9?
27
you better not be putting these in your calculator : |
: |
sigh
HEP
okay.. what's the product of a and b?
ab
VERY GOOD !
i get that
see, no need for a calculator !
D:
i see
Tell me, what's the product of x and y?
And what is a number that is divisble by both x and y?
xy can divide by x and y
very good !
assalamualicum
waris
what are the denominators?
b and 1
and what number is divisble by both b and 1?
wait.
sigh
i think i need to jump off a cliff to get my brain working
my brain stopped there
let's do this again
The product of two numbers is divisble by both of those numbers.
What is the product of b and 1?
noooo
:sOB
it means b is divisible by both b and 1
wait
let me
oh
ok
okay
the product of two number is divisible by both of those two numbers and in this case the product is b and the two numbers is b and 1
FINALLY
😭
IS THIS CORRECT
correct
this is gonna take longer than expected and i've gotta go now

NOASODAODASDSABDQWEQ
😭
but i'll tell you this: you really, REALLY need help with your algebra. you can learn it from here: https://www.khanacademy.org/math/algebra-home
i suppose you could wait for someone else
good luck kid
Closed by @prime lark
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Give triangle ABC. On the outside of ABC are 2 right isosceles triangle ABD and ACE. O and T is the intersection of BE with AC and CD. AH is perpendicular with BC and intersect with DE at M. Proves that M is the midpoint of DE.
@safe sky Has your question been resolved?
this one might be better to understand
thank you
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Question - I'm creating an AI logic in a traffic simulation to have cars detect their closure rate speed. Basically I need a value of Car1's distance to Car2 and how quickly the value is dropping for each calculation. What is the best formula to achieve this?
I've figured out the cars distance. But only need to figure out how to calculate the speed in which the distance is dropping.
what other information do you have about the cars?
Their speed in mph is available.
For both cars.
So their distance from each other and speed is available.
Currently I don't have the logic of direction the vehicles are, to see if they are facing each other or away from each other, but I can set this up. Would this help?
if you know their directions you could find their relative velocities
I'm using the Unreal Engine. I am able to get their velocity right now. Just not knowing if car1 is facing car2 or driving away.
and based on their relative velocities you could find the distance between them
ah, ok
In that case I'm not too sure, sorry
No worries, thanks for the suggestion.
@abstract shell Has your question been resolved?
.close
Closed by @abstract shell
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can there be more than one general solution?
I almost got same ans but with negative sign
@warm root Has your question been resolved?
As c is a constant the sign doesn't matter
So there can be more than one solution?
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This is the step by step walk through for part of a problem in my textbook, but I can't figure out how the last two steps happened
Multiply the numerator and denominator by 10 to get the third line
Thats just a factorization
I understand factoring out 10
Wait
My bad, I wrote the problem wrong
Still stuck on the last part though
I don't think x+10b-10 factors
Unless I split it up....
Then I'm still stuck with x/10 + b - 1
Oh but x=-10 so that becomes a 1 as well
Just ignore me.
@dusty fern Has your question been resolved?
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i need to solve this but im having trouble figuring it out
i was given this chart
what is the question?
are you supposed to proce that or solve for x?
i have to prove it
1/cosx=secx but im unsure how to turn cscx/cotx into that or something else
im just confused
it is often a good idea to write everything with sin and cos
try to express everything in terms of sin and cos
also this reference sheet is crazy
yes
loll
now multiply top and bottom by sin
Closed by @solemn apex
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@mystic saffron Has your question been resolved?
<@&286206848099549185>
I have to wait like
15 more mins
?
<@&286206848099549185>
what have you done so far?
sorry for not answering i was coding
can you show anything that you have done so far
I did not do much
Except finding out
That the origin , focus and centre must lie on a straight line
Which didn't help me in any way
tbh i cant really help with this, sorry man
i wish i would
<@&286206848099549185> someone help him
Yeah mate no problem
Fr
where does your name come from
Inheritance Cycle