Zabesy
#help-36
soft zealotBOT
pseudo karma
final saddleBOT
final saddleBOT
Available help channel!
fierce ridge
the answrs wrong idk what i did wrong
final saddleBOT
the answrs wrong idk what i did wrong
final saddleBOT
final saddleBOT
Available help channel!
chrome phoenix
70% of the vehicles driving on a street are cars, 30% are buses. the probability of parking for a car is 0.1, for a bus 0.2. what is the probability that a vehicle taken at random will stop?
final saddleBOT
70% of the vehicles driving on a street are cars, 30% are buses. the probability...
chrome phoenix
.close
final saddleBOT
final saddleBOT
Available help channel!
coarse knoll
hello, I'm in statistics, and I was wondering if there's a way to calculate the area from a z-score without the z-score chart
final saddleBOT
hello, I'm in statistics, and I was wondering if there's a way to calculate the ...
crisp plover
You're essentially using a calculator, or you're not getting the values in any practical way
final saddleBOT
@coarse knoll Has your question been resolved?
remote steeple
is the equivalence class of x equal to the equivalence class of y if x and y are equivalent?
[x] = [y] if x~y
final saddleBOT
is the equivalence class of x equal to the equivalence class of y if x and y are...
exotic hill
is the equivalence class of x equal to the equivalence class of y if x and y are...
i think this is iff condition i.e [x]=[y] iff x belong [y] or y belong [x]
crimson magnet
final saddleBOT
crimson magnet
how ive tried to prove it is by drawing matrix A and B and adding them together
I don’t think this is a sufficient proof though
crisp plover
If you wanted to make it more formal you would just convert your picture to notation
You would say something like, A is diagonal so aij =0 whenever i !=j, B is diagonal so bij = 0 whenever i != j and then compute (A+B)ij = aij + bij
final saddleBOT
@crimson magnet Has your question been resolved?
hushed wagon
There is any proof that
final saddleBOT
@hushed wagon Has your question been resolved?
grim nebula
just divergence theorem no?
hushed wagon
Idk how to apply it
grim nebula
is the line in 3d or 2d
grim nebula
i mean it gets a bit hairy to do in 3d
but in 2d
say you let f = grad g
and then n ds = (-dy, dx)
if you expand out f . n ds you get like
-f1 dy + f2 dx
and you can apply greens theorem on that
then laplacian of g = 0 means div f = 0
hushed wagon
Could you draw it ? Still a little bit confusing to me
final saddleBOT
@hushed wagon Has your question been resolved?
final saddleBOT
@hushed wagon Has your question been resolved?
hushed wagon
guys 😭😭😭
final saddleBOT
@hushed wagon Has your question been resolved?
weak crystal
can someone help
solemn sage
Do you know what it means if two quantities vary directly as each other / are proportional?
ripe gull
Can someone help me with this problem
final saddleBOT
Can someone help me with this problem
ripe gull
For the equation x^2/x^2-16
- Find the critical numbers
- Find all the relative extremas
- On the open intervals, list the domain of the function where it’s increasing and decreasing
stoic mural
that is not an equation
ripe gull
f(x)=
ripe gull
This was on my quiz
So I’m wondering what I did wrong
Derivative is this is -32x/(x^2-16)^2
Then there are discontinuity’s at x=+-4
And critical number at x=0
The discontinuity can’t be critical numbers cause if you plug them into the original equation they will be undefined
Then I drew a number line
Lemme draw one really quick
stoic mural
ok, wikipedia says a critical point is a point at which f' is not defined or at which f'=0
is that the definition you use?
or only the undefined part
ripe gull
Yes
F’ is 0 at x=0
But someone has told me that it’s not a critical point even though it’s not defined
final tangle
why do you think you did something wrong
ripe gull
why do you think you did something wrong
Wdym?
final tangle
So I’m wondering what I did wrong
.
ripe gull
Cause I got 7/10
crisp plover
A critical point typically needs to be in the domain of the original function itself. That is an easy part of definition to miss.
final tangle
was that 7/10 just for part 1)
ripe gull
was that 7/10 just for part 1)
There r 2 questions I’m pretty sure I got the 2nd one wrong
5 each
ripe gull
A critical point typically needs to be in the domain of the original function it...
How do you find domain?
That’s something I don’t really know how to do either
final tangle
can you take a pic of your work
ripe gull
1. Find the critical numbers
2. Find all the relative extremas
3. On the open in...
Cuz for number 3 here I only listed 1 increasing and 1 decreasing pair, but there’s 2 of each
Uhhh
Well I saw my score online so I don’t have the paper with me
final tangle
,W graph y = x^2/(x^2-16) from -10 to 10
soft zealotBOT
final tangle
well you could first consider the asymptotes
ripe gull
Yea asymptotes at x=4,-4
final tangle
horizontal asymptotes as well
ripe gull
So ig I know one domain is (-inf,-4)
And another (4,inf)
Uhh
We just finding x value domains
final tangle
it's mainly to give you a better idea of how the graph will look
final tangle
if you did the work in part 2, you should've been able to determine that the would be a local max at the critical location in part 1)
ripe gull
Uhhh
So how I did my work
Is using the first derivative test theorem
Our teacher used a number line for this
final tangle
that's fine too I suppose
ripe gull
Let me show u
But I don’t understand really much
My friends got different number lines
U put numbers at each interval
final tangle
anyway the local max tells you that the function would be increasing on (-4,0) and the decrease again after that, (0,4)
as seen on that graph
ripe gull
What’s the difference between local relative absolute max/min?
Absolute is the highest/lowest right
ripe gull
anyway the local max tells you that the function would be increasing on (-4,0) a...
Idk how to see that without a graph
final tangle
you should be able to deduce it from what you determined in part 2)
any it'd help you a lot to look up graphing rational functions
ripe gull
I have done that last year and they are kind of the similar difficulty in understanding as these extremas and critical numbers
Actually they r harder than this
Hmmmm I kind of see it now
ripe gull
you should be able to deduce it from what you determined in part 2)
any it'd hel...
There are asymptotes at x=+-4 and if you plug them into the original equations, they are positive
So they both curve up
Which means in between the asymptotes it’s the domain (-4,4)
And since the lines on (-inf,-4) (4,inf) curve up, the line in between that should be curving down
I don’t think horizontal asymptotes really matter in this situation
And also there is a critical number at x=0
I’m assuming that itself counts as sort of an asymptote
Which means that there’s no way to make the left side (-4,0) decrease if you draw an upside down curve so it’s increase and since it’s curving the other side too at (0,4), it is decreasing
frail badger
how do i get the percentage of a number? give me the easiest formula
brazen sentinel
value/total value)×100%
frail badger
ok so if i want to get 20% of 70 its 20/70*100?
wraith crater
value/total value)×100%
*100 (not 100%)
brazen sentinel
*100 (not 100%)
sorry yes
brazen sentinel
ok so if i want to get 20% of 70 its 20/70*100?
oui
and remember
10% you move the decimal one place
1 % you move the decimal 2 places
5% is half of 10%
and with that you can find anything
frail badger
it gave me different results
i did 20/70 *100 and it gave me 28
i did 20% of 70 and it gave me 14
brazen sentinel
ok well 20% of 70 is 10% twice
so 7 x2
so 20% of 70 is 14-70
ok well 20% of 70 is 14
frail badger
what if i need to find the percentage of something?
like i have 50 and i have the number 238
50 is how much % of 238?
final saddleBOT
@frail badger Has your question been resolved?
astral rose
how to intergrate \int \frac{3}{:\sqrt{x}} ?
final saddleBOT
how to intergrate \int \frac{3}{\:\sqrt{x}} ?
astral rose
I split it to get 3 x 1/root x
then made the 1/root x into x^1/2
then i times 3 by the x^1/2
trail mango
1/root x into x^1/2?
astral rose
oh why's that
trail mango
well sqrt(x) = x^(1/2)
astral rose
is it supposed to be negative
trail mango
yep haha
trail mango
np ^-^
astral rose
.close
final saddleBOT
worn blaze
grim nebula
grim nebula
read #❓how-to-get-help
final saddleBOT
Available help channel!
sleek flicker
Hey, I'm asked to sketch the region of non zero probability of a pdf exp(-(x+y)) defined on x,y greater than or equal to 0
final saddleBOT
Hey, I'm asked to sketch the region of non zero probability of a pdf exp(-(x+y))...
sleek flicker
Is this sketch essentially the area enclosed between the curves exp(-x) and exp(-y) in the first quadrant
dusty harbor
sounds like it
sleek flicker
Perfect thanks
grim nebula
the area enclosed between the curves exp(-x) and exp(-y)?
that sounds awfully suspicious
dusty harbor
is this your distribution?
sleek flicker
This is multivariable yes
grim nebula
what do you mean by
the area enclosed between the curves exp(-x) and exp(-y)
the distribution assigns probability to all of x,y>0
sleek flicker
So it's the entire first quadrant?
grim nebula
that is where the density is positive
sleek flicker
So it's not so much about the pdf itself it's more so down to the given conditions for x and y?
soft zealotBOT
grim nebula
and then you just need to pick when its nonzero
sleek flicker
Okay okay thats making much more sense now
Okay so it's the entire first quadrant including the x and y axes then
snow prawn
Hi!, what is the percentual decrease in 160 000 · 0,95^x, and how do you calculate it
final saddleBOT
Hi!, what is the percentual decrease in 160 000 · 0,95^x, and how do you calcula...
mint orbit
wow thats a new word for me
tired walrus
gonna need to see the problem statement
"percentual decrease in 160000 * 0.95^x" is vague
snow prawn
well, lets say 160000 is a price of a car, and it loses its value every year
x stands for number of years
0.95 is how much it depreciates
tired walrus
so you want to find the percentage by which the price goes down every year?
that's 1 - 0.95, i.e. 5%
final saddleBOT
final saddleBOT
Available help channel!
full birch
does anyone have an outstanding link for understanding Big O notation regarding formulas?
final saddleBOT
does anyone have an outstanding link for understanding Big O notation regarding ...
full birch
I'm having a difficult time understanding "Show that n^2 + 1 is O(n^2)"
grim robin
Isn’t it 1/n= O
full birch
the answer?
grim robin
Yeah
full birch
according to my teacher's explanation, the answer is:
grim robin
Is?
full birch
Let c = 2, k = 1. Assume n > 1.
Then, cn^2 = 2n^2 = n^2 + n^2 > n^2 + 1, or n^2 + 1 < cn^2.
But I want to know why
I don't understand this at all
so, I'd like to break this down as if you are explaining things to an average 5th grader
not the super bright ones on TV
grim robin
How is that the answer
full birch
ah, you're not good at Big O also?
grim robin
Yeah I’m just looking around
full birch
we can wait until someone proficient comes along
grim robin
Yeah. What is big O
grim robin
Oh it’s a program very cool
full birch
it's not a program
grim robin
Is it functions
full birch
let's just await a proficient user and then, hopefully it will be more clear
grim robin
let's just await a proficient user and then, hopefully it will be more clear
Ok. Maybe you could help my math question?
full birch
please post in a different channel since I'm waiting for assistance in this specific channel
grim robin
Ok
full birch
<@&286206848099549185>
sturdy cypress
the goal is to show that you can choose some c and some minimal n, and then cn^2 is always more than n^2 + 1
they do it by choosing c = 2 and n > 1, I don;t know what they meant by k
it's the goal because it's the definition
full birch
so, I know what Big O is in a nutshell
sturdy cypress
ok
full birch
it's a way to obtain an approximation of the speed of an algorithm
and how it scales
depending on input
sturdy cypress
it's actually more like the upper bound
full birch
wait
sturdy cypress
it's not that you;re saying that it's roughly cn^2, but that it's less
full birch
before we get to technical terms, i'd like to keep things VERY simple
sturdy cypress
so any O(n^2) is also O(n^888)
full birch
"upper bound" is too technical currently
sturdy cypress
because it's less than n^888 too
full birch
if it's ok, let's start slowly
i've tried discussing this with five math enthusiasts so far and all the explanations have been far too technical
grim robin
Some hard math there
final saddleBOT
@full birch Has your question been resolved?
full birch
<@&286206848099549185>
final saddleBOT
@full birch Has your question been resolved?
muted prairie
O(n^2) means smaller than some n^2 function
vestal yacht
so basically, to sort something u got an algorithm
and algorithm works in different speed
big O notation basically means the speed of growth per term of that algorithm is bounded by some other function
so lets say you inputted n and it took p amount of work to compute
if you input n+1 and it takes np amount of work to compute
it grows in the speed of (n-1)!
so O(n!) is the upper bound of the growing speed
as if my understanding
final saddleBOT
@full birch Has your question been resolved?
final saddleBOT
final saddleBOT
Available help channel!
tranquil pine
how do i find order of $SL_2(\mbb{F}_p)$
final saddleBOT
how do i find order of $SL_2(\mbb{F}_p)$
soft zealotBOT
Arkos
tranquil pine
in the first answer, i don't get how every matrix with determinant can be mapped to a matrix with det 1
ping please
final saddleBOT
@tranquil pine Has your question been resolved?
coarse yacht
how do i find order of $SL_2(\mbb{F}_p)$
You could quotient $GL_{2}(\mathbb{F}{p})$ by the kernel of the determinant that is $SL{2}(\mathbb{F}_{p})$
soft zealotBOT
black_couscous
lime sand
lets suppose we have 2 vectors a and b how would you go on about writing the perpendicular component of a on b?(in terms of a and b)
final saddleBOT
lets suppose we have 2 vectors a and b how would you go on about writing the per...
dusty harbor
sounds like you need a dot product
void crest
lime sand
but how idk how to write the unit vector
lime sand
but i want a vector perpendicular to that
void crest
<https://en.wikipedia.org/wiki/Vector_projection>
^
final saddleBOT
final saddleBOT
Available help channel!
solar hare
Hi, can someone help me understand why these 2 integral calculators are giving me two different answers for the same integrals ?
The first one showed me the steps, and they make sense, but the second one doesn't let me see them unless I have a premium subscription. Thus I'm confused how the second one added an extra -2/3 to it
final saddleBOT
Hi, can someone help me understand why these 2 integral calculators are giving m...
solar hare
Why did the second one feel the need to separate the -2/3 though ? That's the first time Symbolab does something weird like that in my experience
wraith crater
It decided to use the identity sec^2(x) = 1+tan^(x) and integrate them individually instead of directly integrating sec^2(x)
As to why I don’t know
solar hare
Alright, well thanks for clearing that up. I was going mad on that one x)
wraith crater
solar hare
.close
tranquil pine
final saddleBOT
dusty harbor
yeah looks about right
final saddleBOT
tranquil pine
.reopen
final saddleBOT
✅
tranquil pine
ok to find this out i have to do
answer 12?
i did x=4 and got g(x) =2
then i went x=2 then got f(x)=12
wraith crater
Ye
final saddleBOT
final saddleBOT
Available help channel!
final saddleBOT
tranquil pine
can you provide a mwe and screenshots?
buoyant linden
as you can see it starts to duplicate after the chunk
<@&286206848099549185>
It was not the chunk i deleted it and the problem stayed
brisk pike
why can't I plot a function like f(x)=(-2)^x
final saddleBOT
why can't I plot a function like f(x)=(-2)^x
rain crane
,w plot (-2)^x
soft zealotBOT
hushed sonnet
I mean. You technically can but there will be a bunch of points where it is imaginary
wraith crater
What’s (-2)^1/2 say
brisk pike
if i try doing it on maple or some other program it just doesnt show anything
final saddleBOT
final saddleBOT
Available help channel!
carmine plaza
final saddleBOT
carmine plaza
I just need help finding b or the vertical axis
i think my answer is right but i just want to check
final saddleBOT
@carmine plaza Has your question been resolved?
carmine plaza
It's correct but it'd be nice to get it explained
I don't quite understand the eccentricity
celest crane
The formula for eccentricity is e = c/a.
And another formula for a, b, and c is b^2 = a^2 - c^2.
You use substitution for a and c for eccentricity to allow you to solve for b in the second equation.
$e = \frac{c}{a} = \frac{3}{5}\\
b^{2} = 5^{2} - 3^{2}$
soft zealotBOT
Kookiemon
celest crane
a will be your major axis and b will be your minor axis.
true thunder
Im given a centre of a circumference C(-3, 1) and asked to find the equation of the circumference with that centre and to the line 4x +3y +4 = 0
final saddleBOT
Im given a centre of a circumference C(-3, 1) and asked to find the equation of...
true thunder
At the moment I have only put the line equation in explicit form (y = -4/3 x - 4/3)
I don't know the rest
celest crane
Do you know how to calculate the distance from a line to a point not on the line?
true thunder
Yea
celest crane
That will be your radius for the circle.
true thunder
d = | Axp + Byp + c | / sqrt(A^2 + B^2)
celest crane
d will be the radius.
celest crane
(x-h)^2 + (y-k)^2 = r^2
celest crane
Are you calculating the length of the circumference or the equation of the circle?
true thunder
equation
celest crane
Then use the formula you wrote.
true thunder
Ok
Thx
Lemme do the calculus real quick
Ok it comes out
Thanks a lot man, you are a life saver!
final saddleBOT
@true thunder Has your question been resolved?
final saddleBOT
true thunder
.reopen
final saddleBOT
✅
true thunder
.close
final saddleBOT
@ripe sonnet Has your question been resolved?
final saddleBOT
@ripe sonnet Has your question been resolved?
final saddleBOT
@ripe sonnet Has your question been resolved?
final saddleBOT
@ripe sonnet Has your question been resolved?
vital crag
Draw the right triangle with opposite length h and adjacent side R-r
tranquil pine
Hey there, what is the formula for finding the area of a sector of a circle, given the diameter and angle in radians?
final saddleBOT
Hey there, what is the formula for finding the area of a sector of a circle, giv...
tranquil pine
or rather, is the formula: (1/2) * r^2 * theta
sacred parcel
yes
tranquil pine
okay, thank you
restive furnace
Idk if im right or wrong, i did the equation twice but i still think its wrong
shrewd glacier
Ok so I'm trying to figure out how to find the value of x in an ordered pair so that two lines are parallel or perpendicular. The way my math teacher explained it was really convoluted. The specific problems I'm working on are "Given C(x, 16), D(2, -4), E(-6, 14), and F(-2, 4), find the value of x so that CD and EF are parallel" and "Given P(12, -2), Q(5, -10), R(-4, 10), and S(4, y), find the value of y so that PQ is perpendicular to RS
final saddleBOT
Ok so I'm trying to figure out how to find the value of x in an ordered pair so ...
shrewd glacier
Yes I knew that
trim summit
the slope of CD is
(x-2)/(16-(-4))
.
the slope of EF is
(-6-(-2))/(14-4)
.
since slope of CD and EF are the same
we can set up an equation:
(x-2)/(16-(-4)) = (-6-(-2))/(14-4)
.
now we just have to solve for x
then u get the answer
for the second question
since they are perpendicular
MPQ x MRS = -1
try to set up an equation and solve for y
shrewd glacier
Wait so if x2-x1 is negative, does that make the slope negative?
final saddleBOT
@shrewd glacier Has your question been resolved?
shrewd glacier
No
trim summit
Wait so if x2-x1 is negative, does that make the slope negative?
well it depends on y2 - y1
if both y2 - y1 and x2 - x1 is negative then the slope can be positive
shrewd glacier
Got it
trim summit
cool
final saddleBOT
@shrewd glacier Has your question been resolved?
gentle spear
What’s the difference between these two fractions?
final saddleBOT
What’s the difference between these two fractions?
gentle spear
One has the subtract sign beside the line and one has it beside both numbers
What’s the difference
tired walrus
that's a minus sign, not a subtract sign
$\frac{-52}{-8}$ means you divide $-52$ by $-8$, while $-\frac{130}{20}$ means you divide 130 by 20 and take the negative of the result
...bot's slow today
tired walrus
you sounded like you were asking for the difference in meaning between these two fractions
tired walrus
as far as simplification goes, in (-52)/(-8) you can "cancel out" the minuses (which really are just multiplications by -1 and should be thought of as such) and get 52/8
tired walrus
no
tired walrus
-13/-2 is correct simplification but incomplete
and yes it changes everything
my point about cancelling out the multiplications by -1 still stands.
tired walrus
13/1?
tired walrus
you sure you didn't typo that
tired walrus
so you definitely absolutely got 13/1 and not 13/2 as one would expect you to get
final saddleBOT
final saddleBOT
Available help channel!
gentle spear
final saddleBOT
gentle spear
How do I multiply this? Do I treat it like both numbers are negative for the second fraction or do I make the negative positive and the positive negative or something else entirely?
dire hedge
How do I multiply this? Do I treat it like both numbers are negative for the se...
negatives would cancel each other out and become positive
dire hedge
Does that become negative
which top number?
gentle spear
gentle spear
But the bottom number is already negative and the top isn’t
gentle spear
So it just both becomes positive?
dire hedge
yeah
i think itll help you to think of it as one number
its either positive or negative
they arent two different numbers
elfin escarp
Can someone pls help me identify what else can be x
final saddleBOT
Can someone pls help me identify what else can be x
jovial prawn
dont forget you cyclical quadrilateral theroem
elfin escarp
What u mean?
elfin escarp
dont forget you cyclical quadrilateral theroem
I used angle b= x for cyclic quad
<@&286206848099549185> pls can someone help me
final saddleBOT
@elfin escarp Has your question been resolved?
final saddleBOT
@elfin escarp Has your question been resolved?
tranquil pine
- Represent the following numbers as being members of set K: -2, -1, -4, -1, -3,
-1, -5, -3.
final saddleBOT
3. Represent the following numbers as being members of set K: -2, -1, -4, -1, -3...
dusty harbor
set k?
tranquil pine
yeah ig
nova agate
K = {-2, -4, -1, -3, -5,}
tranquil pine
..? how is that right.. gosh I'm lost
slate phoenix
the set
K must denote
distinct elements
via the definition fo cardinality
say I had the function f(x) = 2
and the domain was all real numbers
the set f(x) would just be {2}
frosty sedge
final saddleBOT
slate phoenix
yes your work is correct
frosty sedge
final answer is correct right
frosty sedge
yes your work is correct
it’s like 10% of my grade just wanna double check💀💀
frosty sedge
kk
frosty sedge
your work is correct but I"ll run my own calculation
lmk if final answer is correct
slate phoenix
yeah I checked
so your fs is correct
and your dr/dt
is correct
still checking the rest lol
frosty sedge
kk lmk before i submit if i made a dumb mistake or smth
slate phoenix
okay yes your final calculation is correct
in your fs * dr/dt
wow that was one hell of a calc 3 refresher
frosty sedge
frr calc 3 makes my brain fucking die
u gotta think of like problems in a whole different ass way than calc 1
frosty sedge
calc 1 was super easy
slate phoenix
but calc 3 is pretty fun once you get into partial differential equations
slate phoenix
advanced multivariable calc(math major specific course) where you prove calc 3 is hard as hell
frosty sedge
bc i wasn't paying attention
frosty sedge
in the very beginning
slate phoenix
not paying attention in lecture and studying 3 all nighters in a row for an exam
frosty sedge
advanced multivariable calc(math major specific course) where you prove calc 3 i...
still gotta take mathematical methods for engineers 2
slate phoenix
and my studying was just doing practeice problems over and over and over
OHHHH haha
frosty sedge
prolly gonna take a gap semester or smth LMAOO
slate phoenix
engineering mathematics right?
frosty sedge
yeah this is math 1
frosty sedge
yeah imma take all the easy small classes
this semester
so last semester i finish math 2
w like easy classes
slate phoenix
Yeah for sure
your calculations are precise tho
and I like your organization while doing the problems
I think you got this just do a few more in your own time
to gain confidence
frosty sedge
yeah gotta get prepared for the final in like 6 days
thank u tho haha
i'm not that organized but i understand my work lmaoo
most people write all over the place in math
i'm kinda proud of myself
slate phoenix
Yeah I'm all over the place
even in analysis my proofs are so messy I get points off for bad handwriting
- illegible solution
frosty sedge
yeah everybody has their strenghts and weaknesses i guess hhah
thank u very much for ur help tho i appreciate it @slate phoenix
everybody needs an extra set of eyes sometimes especially in calc 3 lmaoo
final saddleBOT
@frosty sedge Has your question been resolved?
onyx locust
final saddleBOT
https://www.numerade.com/questions/test-for-exactness-if-exact-solve-if-not-use-...
@onyx locust Has your question been resolved?
final saddleBOT
@onyx locust Has your question been resolved?
final saddleBOT
final saddleBOT
Available help channel!
winged briar
35,45 = (x . 75,77 + 36,97 . 24,23) / 100
final saddleBOT
35,45 = (x . 75,77 + 36,97 . 24,23) / 100
winged briar
yes they are
tranquil pine
so i translate:
35.45 = (75,77 * x + 36.97 * 24,23)/100 ?
And you want x
Am i correct?
winged briar
ye
tranquil pine
alright let's get rid of the parenthesis they're useless now
And we substract both side by 36.97 * 24,23
Then we divide both side by 75,77
winged briar
why cant i do 36.97 * 24,23
winged briar
3545 = 75,77 * x + 895.7831
winged briar
i need more help
tranquil pine
substract 895.7831 from both side
Then we divide both side by 75,77
And we found x
winged briar
.close
final saddleBOT
final saddleBOT
Available help channel!
simple maple
How can I find out if a stochastic matrix is not regular? Do I have to check every power of the matrix until infinity?
final saddleBOT
How can I find out if a stochastic matrix is not regular? Do I have to check eve...
@simple maple Has your question been resolved?
final saddleBOT
final saddleBOT
Available help channel!
fleet rain
what is monte carlo?
final saddleBOT
what is monte carlo?
fleet rain
in math
desert mantle
fancy word for generating random data for some purpose
for example to calculate the expected value of some distribution, you just let the computer pick a million samples and then calculate the mean of that
fleet rain
theres no way to calculate the ev by hand?
desert mantle
offer?
fleet rain
without a computer
desert mantle
well not always
might be too hard
and even if it might be possible, it's definitely faster to just code it and let the computer run for five minutes
(oversimplification of course but you get the idea)
fleet rain
ic
roll three dice and square the middle value roll
can you help me with this question?
desert mantle
that's not a question
final saddleBOT
@fleet rain Has your question been resolved?
final saddleBOT
@fleet rain Has your question been resolved?
heavy laurel
This would simplify to cos(t)/sin(t) *9t/t 1/cosine(t), right?
final saddleBOT
This would simplify to cos(t)/sin(t) *9t/t 1/cosine(t), right?
@heavy laurel Has your question been resolved?
foggy hawk
how would I go about setting this problem up
final saddleBOT
how would I go about setting this problem up
foggy hawk
I understand L hopitals rule but I don't know how to change this to infiniti over infiniti or 0 over 0
sweet summit
you could try finding a common denominator. $\\frac{1}{x-2} - \frac{1}{ln(x-1)} = \frac{ln(x-1) - (x - 2)}{(x-2)(ln(x-1)}$. Then when you check for the limit it should be $\frac{0}{0}$.
soft zealotBOT
MellowDramaLlama
sweet summit
nah it's okay. Don't worry it's easy to miss stuff like that
foggy hawk
@sweet summit thanks man I really appreciate the help. Hopefully one day I will be smart enough to help people with questions like this 🤣
sweet summit
don't worry you can do these in your sleep in no time flat!
foggy hawk
yeah the concept is easy to me, its just the weird setups
sweet summit
what this is getting you prepped for is algebraic manipulation
that's all calculus is
it's algebraic manipulation on steroids
so you'll be happy you've gone through these lol
sweet summit
calc2 is still one of my favorite courses I've taken in my undergrad
foggy hawk
calc2 is still one of my favorite courses I've taken in my undergrad
makes sense. I think calculus is very fascinating
sweet summit
it depends. What I"ve heard from people is that they either struggle in Calc2 or Calc3 (of course this set in stone, but seems to be a trend)
I found Calc3 much harder than Calc2
but that's just me
I know someone who had the opposite effect haha
foggy hawk
hopefully I find calc 2 easier because I am in Texas A&M engineering and you have to get a 3.75 gpa or higher in freshman year if you want to be able to choose whichever engineering major you want
sweet summit
oh hey we're close by
I'm at Texas State in San Marcos
here let me give you a few resources
foggy hawk
oh cool, good for you. Although I am not in college station. I am in a program where you go to dallas community college for all classes except my programming class (that is taught by A&M).
I can move to college station once I finish calc 3
so I am going to try and get it done over the summer
foggy hawk
I wish I was in college station cause I have a bunch of friends there but this is way cheaper and easier to get a 3.75 gpa in
sweet summit
This website will help you from calc 1 to calc3 and diff eq: https://tutorial.math.lamar.edu/
This YT channel will give you full lectures over what you're going over. He's a great teacher. I would watch his videos sped through outside of lecture to get another perspective on the subject material: https://www.youtube.com/watch?v=fYyARMqiaag&list=PLF797E961509B4EB5&ab_channel=ProfessorLeonard
foggy hawk
oh I have seen professor leonard
he is good
although personally I prefer organic chemistry tutor
sweet summit
is calc 3 with the total derivative and such?
yeah partly that. That and vector fields and all 3D calculus stuff
foggy hawk
although professor leanord is my backup
dusty harbor
oh lord they just fucked the ui on youtube
foggy hawk
wdym
sweet summit
I wish I was in college station cause I have a bunch of friends there but this i...
honestly you'll be glad once that you did CC when all is said and done (at least financially haha)
I loved my CC experience (at ACC in Austin)
dusty harbor
this was how it was just an hour ago
foggy hawk
honestly you'll be glad once that you did CC when all is said and done (at least...
I agree
dusty harbor
this is how youtube looks now
foggy hawk
honestly you'll be glad once that you did CC when all is said and done (at least...
it gives me a bit of time to get used to college before I go live on my own
sweet summit
this is how youtube looks now
oh yeah sure enough
I think I have some Firefox settings on my end because nothing has changed lol
foggy hawk
this is how youtube looks now
oh I hate this
sweet summit
it gives me a bit of time to get used to college before I go live on my own
Yeah absolutely!! Regardless it doesn't matter what road you take to get your education
foggy hawk
yeah in the long run I view it as more of a product that I am buying rather than an experience
I just want to get a well paying job that and I thought engineering was the best way to do that
plus engineering really appeals to me
sweet summit
did you consider computer science?
That's what I did 🙂
tranquil pine
Yo, can someone help me on this 2 step equation word problem please?
foggy hawk
I know some people who are doing it just because it will make them a lot of money and I am like, "you are not going to have a fun time at all"
sweet summit
@tranquil pine Hi there. Can you head to #❓how-to-get-help to open a free channel?
tranquil pine
Okay thanks
dusty harbor
I know some people who are doing it just because it will make them a lot of mone...
some people can learn to love it
but yeah mostly its a terrible idea i agree
a better idea than studying communication though
sweet summit
I know some people who are doing it just because it will make them a lot of mone...
it's a fine balance between good income and at least somewhat enjoying the job. I'm a big proponent that you don't have to love your work to be in a field, but it helps to at least like it a little lol
foggy hawk
did you consider computer science?
I like programming but I don't think I could do it for a living. I am either going to major in computer engineering, electrical, or industrial.
preference in that order
dusty harbor
not a fan of programming but still wanting to major in computer engineering sounds funny lol
computer engineering is computer hardware pretty much right
foggy hawk
I am a fan, but I don't want it to be the only thing I do
I am more interested in hardware than software
sweet summit
more focus on hardware design
foggy hawk
yeah that is exactly what I am interested in
sweet summit
but like as an example you're making the processors so you might need to know, for example, some assembly shudders
dusty harbor
lmaoo
sweet summit
but yeah basic understanding of data structures n whatnot is typically required
not hard
just annoying if you're not much into the programming part of it lol
foggy hawk
yeah assembly code sounds kind of scary
dusty harbor
rollercoaster tycoon was built in assembly : )
dusty harbor
yeah lol
foggy hawk
madlad dev
dusty harbor
but it allowed for some crazy cpu optimisations
so the game could render lots of stuff at once
and the creator made like 50 million so
worth it
foggy hawk
the definition of masochism
dusty harbor
hahah yeah
sweet summit
yeah assembly code sounds kind of scary
Assembly isn't scary. But it's kind of... verbose? Like to do a for loop, even in a RISC architecture is like 10 instructions
foggy hawk
I thought java was a pain in the ass bro
dusty harbor
i think it would really help understanding how a computer words
worst ive done so far is python like a true math scrub
foggy hawk
yeah A&M's introduction to engineering class is just python programming
its super easy
I had to write a program that converted english to pig latin today
foggy hawk
yeah
sweet summit
igpay atinlay
foggy hawk
although it only makes you do one word
dusty harbor
cant you just disregard grammar and use that to translate entire sentences
foggy hawk
foggy hawk
cant you just disregard grammar and use that to translate entire sentences
I suppose, but that is not the assignment
I have more important things to be doing lol
dusty harbor
lol
foggy hawk
and if I do have freetime then usually it is spent playing apex legends or metal hellsinger
dusty harbor
fair enough
sweet summit
although it only makes you do one word
def pig_latin(string):
return string[1:] + '-' + string[0] + 'ay'
Bam
dusty harbor
not a lot of free time in engineering though haha
dusty harbor
```py
def pig_latin(string):
return string[1:] + '-' + string[0] + 'ay'
```
B...
is that all pig latin is
ive never heard of it lol
sweet summit
yeah you take the first letter, put it at the end of the word, and add 'ay" to it
dusty harbor
igpay atinlay
this makes more sense now
foggy hawk
```py
def pig_latin(string):
return string[1:] + '-' + string[0] + 'ay'
```
B...
if it starts with a vowel you put yay on the end
that is for if you have one that starts with a consanent
although your code is a lot more efficient than mine lol
dusty harbor
foggy hawk
im still not great at python
dusty harbor
💀
foggy hawk
lol yeah
foggy hawk
you are right
I should do that next time
this is why I am not a professional engineer 🤣
dusty harbor
lmao
foggy hawk
alright nice talking to yall I had better be getting home
heavy laurel
This would simplify to cos(t)/sin(t) *9t/t 1/cosine(t), right?
final saddleBOT
This would simplify to cos(t)/sin(t) *9t/t 1/cosine(t), right?
shell mountain
!15m
final saddleBOT
Please only use the <@&286206848099549185> ping once if your question has not been answered for 15 minutes. Please do not ping or DM individual users about your question.
heavy laurel
I see on online calculator the next step would be to transform the fraction into this:
Intuitively this doesn't make sense to me, because I thought tan = sin/cos, here they completely disregarded the cos and substituted a 1 in it's place. Isn't it supposed to read: sin(9t)/cos/1/cos?
shell mountain
tan(9t) = sin(9t)/cos(9t)
The cos isn't disregarded, it's in the denominator
The denominator of the big fraction
heavy laurel
The denominator of the big fraction
Why would they put it as the final denominator in that expression..doesn't it belong as the denominator of the sin(9t) on top?
shell mountain
I don't know their exact reasons for doing it, but $\frac{\frac{sin(9t)}{cos(9t)}}{\frac{t}{cos(t)}}$ is identical to what they had
soft zealotBOT
Gamer Dio
heavy laurel
I don't know their exact reasons for doing it, but $\frac{\frac{sin(9t)}{cos(9t)...
I have to be right back I'm going to my lab for better internet connection. Thanks for this clarification. I will be back.
final saddleBOT
@heavy laurel Has your question been resolved?
median delta
final saddleBOT
median delta
Need help
final saddleBOT
@median delta Has your question been resolved?
median delta
<@&286206848099549185>
final saddleBOT
@median delta Has your question been resolved?
mint orbit
you should google these, theyre common proofs and probably better written elsewhere
image and null space
median delta
.close
supple copper
final saddleBOT
supple copper
I solved it out and get that it's [0, 1) U (1, +inf)
but why isn't it **(**0, 1) U (1, +inf)?
isn't the derivative 0 at x=0?
sorry for being so particular I just don't wanna mess this up on exams lol
strange rune
you are right at 0 the derivative is 0
but now two things
technically a constant function is both increasing and decreasing
because for any a>=b
f(a)>=f(b)
just not strictly increasing
for the other thing,
your function is strictly increasing over the interval [0,1)
basically it has a constant part
if its flat on a whole interval
not on only isolated points
like for example
the function f(x) =x^3
has derivative 0 at 0
but its still strictly increasing on R
final saddleBOT
@supple copper Has your question been resolved?
supple copper
ohh
hmm
so basically determining where it's increasing isn't solely based on the derivative being positive?
i mean like
if the beginning point has a slope of 0, it's still part of the interval that increasing?
strange rune
if theres only isolated points
at which the derivative is 0
its not flat
at that point
like its not constant
so if its strictly increasing around
its strictly increasing even counting the point in
final saddleBOT
@supple copper Has your question been resolved?
final saddleBOT
final saddleBOT
Available help channel!
past spade
how do i translate this into a first order predicate formula?
"If some farmers are right-handed and some right-handed people have blue eyes, then some farmers have blue eyes"
A is the set farmers, C is the set of right handed people, D is the set of blue eyed people
P(x) is 'x is a farmer', R(x) is 'x is right handed', S(x) is 'x has blue eyes'
final saddleBOT
how do i translate this into a first order predicate formula?
"If some farmers a...
past spade
my initial guess would be: $$\exists_{x \ \in \ U}((P(x) \ \land \ R(x)) \land (R(x) \ \land \ S(x)) \implies (P(x) \land S(x)))$$
soft zealotBOT
yotta
past spade
but idk seems wrong and verbose
<@&286206848099549185>
ive simplified it to: $$(\exists_{x \ \in \ A}(R(x)) \land \exists_{x \ \in \ C}(S(x))) \implies \exists_{x \ \in \ A}(S(x))$$
soft zealotBOT
yotta
past spade
is that right ^^ ?
final saddleBOT
@past spade Has your question been resolved?
final saddleBOT
@past spade Has your question been resolved?
brisk compass
I need help with this related rates problem. I am not sure how to do this problem for my hw
final saddleBOT
I need help with this related rates problem. I am not sure how to do this proble...
@brisk compass Has your question been resolved?
polar wing
,rotate
soft zealotBOT
final saddleBOT
@brisk compass Has your question been resolved?