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Math with Marker
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Добавлен 15 сен 2022
Welcome to Math with Marker, I make math videos. This channel is a bout Math. We usually solve interesting question of math ! If you like my content, dońt forget to subscribe ❤️ !
MIT Integration bee !
Hello everyone
In this video I solved a nice integral. If you enjoyed the video, dońt forget to subscribe❤️!
#calculus #integration #integral#mit
#integration_Bee
In this video I solved a nice integral. If you enjoyed the video, dońt forget to subscribe❤️!
#calculus #integration #integral#mit
#integration_Bee
Просмотров: 45
Видео
Solving a Quadratic equation
Просмотров 166Месяц назад
Hello everyone . In this video I solved a nice Quadratic equation . If you enjoyed the video, dońt forget to subscribe!❤️ solving a quadratic equation ruclips.net/video/QuyRrCc8G88/видео.htmlsi=k4_yILqGoPolxkh2 #algebra #calculus #math #matholympiad #mathwithmarker
Kosovo Math olympiad
Просмотров 1382 месяца назад
Hello everyone. In this video I solved a math problem from kosovo math olympiad . If you enjoyed the video, dońt forget to subscribe!❤️ #algebra #calculus #math #matholympiad
Brazilian Math olympiad
Просмотров 3153 месяца назад
Hello everyone. In this video I solved a math problem from Brazil math olympiad . If you enjoyed the video, dońt forget to subscribe!❤️ solving a quadratic equation ruclips.net/video/QuyRrCc8G88/видео.htmlsi=k4_yILqGoPolxkh2 #algebra #calculus #math #matholympiad
Japanese Math olympiad
Просмотров 1933 месяца назад
Hello everyone. In this video I solved a math problem from japanese math olympiad . If you enjoyed the video, dońt forget to subscribe!❤️ solving a quadratic equation ruclips.net/video/QuyRrCc8G88/видео.htmlsi=k4_yILqGoPolxkh2 #algebra #calculus #math #matholympiad
Singapore Math olympiad
Просмотров 4243 месяца назад
Hello everyone. In this video I solved a math olympiad problem from singapore math olympiad. If you enjoyed the video, dońt forget to subscribe!❤️ #calculus #algebra #math #matholympiad
USA Math olympiad
Просмотров 1224 месяца назад
Hello everyone. In this video I solved a nice problem from USA math olympiad . If you enjoyed the video, dońt forget to subscribe❤️ #algebra #calculus #math #matholympiad
German math olympiad
Просмотров 2214 месяца назад
Hello everyone. In this video I solved a nice problem from german math olympiad. If you enjoyed the video, dońt forget to subscribe❤️! #algebra #math #matholympiad #calculus
Indian Math olympiad
Просмотров 3,1 тыс.4 месяца назад
Hello everyone. In this video I solved a nice integral. If you enjoyed the video, dońt forget to like and subscribe!❤️ #algebra #math #matholympiad #calculus
Japanese Math olympiad
Просмотров 6204 месяца назад
Hello everyone. In this video I solved a nice math problem from japan math olympiad. If you enjoyed the video, dońt forget to subscribe! ❤️ #math #matholympiad #algebra #calculus
Ukrainian Math Olympiad
Просмотров 4804 месяца назад
Hello everyone. In this video I solved a nice problem from ukrainian Math olympiad. If you enjoyed the video, dońt forget to like & subscribe!❤️ Quadratic equation ruclips.net/video/QuyRrCc8G88/видео.htmlsi=APbvRlmuuBw4dRTK #math #algebra #calculus #matholympiad
Korean Math olympiad
Просмотров 3,1 тыс.5 месяцев назад
Hello everyone . In this video I solved a nice problem from south korean math olympiad. If you enjoyed the video, dońt forget to like & subscribe!❤️ Quadratic equation ruclips.net/video/QuyRrCc8G88/видео.htmlsi=APbvRlmuuBw4dRTK #math #algebra #calculus #matholympiad
singapore Math olympiad
Просмотров 2 тыс.5 месяцев назад
Hello everyone. In this video I solved a nice problem from singapore math olympiad. If you enjoyed the video, dońt forget to subscribe!❤️ #math #algebra #calculus #matholympiad
Australian Math olympiad
Просмотров 1,7 тыс.5 месяцев назад
Hello everyone. In this video I solved a nice problem from australian math olympiad. If you enjoyed the video, dońt forget to like & subscribe!❤️ #math #algebra #calculus #matholympiad
Solve Math olympiad problem !
Просмотров 8525 месяцев назад
Hello everyone. In this video I solved a nice math olympiad problem. If you enjoyed the video, dońt forget to subscribe!❤️ #math #algebra #matholympiad #calculus
Solving a nice problem from matholympiad
Просмотров 939 месяцев назад
Solving a nice problem from matholympiad
1/2 dont ru n away
I just did it in my head
❤❤❤
❤❤❤❤
Very good❤❤❤❤❤
❤️
Very good❤❤❤❤
❤️
ooga booga i ll clickbait them with "math olympiad" in title
I'm literally a math major, I have no idea why I clicked 😂
🙂
Nah sub for the biggest e term apply chen lu and get an answer lol did it within seconds
SO, WHAT'S THE X?
Shouldn't X be complexe ?
It will be more beautiful !💛
x=lnΦ/ln2 where Φ=(1+√5)/2 is the Golden Ratio.
these types of problems become very easy when you realize that the radical probably implies that what is under the radical probably takes the form of (a+b)²
In physics, similar algebraic form is given by the Fermi-Dirac distribution f(E) = 1/(1+exp((E-Ef)/KT)) .... and the identity f(Ef+E) + f(Ef-E) = 1 says that the the total probability of the conduction electron at the energy E above the Fermi level Ef and the probability of the valence electron at the energy E below the Fermi level is unity....
x * (x^2 + 1) ( x^3 + 1) = 0 x = 0, -1 are only feasible solution
x = 0, -1, +/-i, 1/2(1+/-sqrt(3)i). Going to watch video now to see if I am correct. OK x is real...so just 0, -1
I took a more intuitive approach. First, since all the signs were addition this means that the number can not be positive otherwise all the numbers would add up to more than zero. Since two of the Xs have even powers and the other two have odd powers this means that there will be two negative numbers and two positive numbers added together after carrying out exponentiation. The two odd powers will give negative numbers, the two even powers will give positive numbers. Since the powers of 6 and 4 are so much larger than 3 and 1 there is no number more negative than -1 that would cancel out all the terms to equal zero. The same is true for any number below -1 because the numbers cannot cancel out because of the big difference in powers being added. So the only number left is -1 which does work because of the way that it oscillates between positive and negative when going up by one in powers.
just a very complicated way to describe the golden section. Nice
I think your microphone setup could be improved. Have you tried a lapel mic?
Yes, you are right! Thanks💛
I just looked at it and my guesses were 1, then 0, then 1/2. Feel like guessing is too strong here.
Man this is soo satisfying!
Very simple method of doing the problem. Nice
Another approach is to apply the difference of two squares.
Honestly, the root can be simply guessed by looking at the equasion close enough. Though for proving that the root is unique I've started thinking towards Lambert's W-function. Your method is much simpler)
same i thought id take log then get logx = 10^(kx) form then id take lambert w function
since x is not equal to zero I would divide the whole equation by x^2 x^2+1/x^2 -7(x+1/x)+14=0 Let t=x+1/x then t^2= x^2+1/x^2 +2 Substituting t^2-2-7t+14=0 t^2-7t+12=0 t=3 or 4 Back substitute to get two quadratic equations of x and solve.
❤❤❤very good
I would use substitution van u=x+1 x -1 = u -2 x = u -1
Nice methode and video, just most of the time you put a one way symbol (-->) where it actualy in bothe wheys (<-->)
Why do you start by stating that x is real? X must be complex.
could you please as soon as possible set if you are looking for answers in natural numbers, real numbers or complex? For my undeerstanding, k is natural number, x is real and z is complex.
Maybe I'm missing something, but I think that there may be an error at 4:15 The equation is a^2 - 3xa + 2x^2 = 0 and it gets factored into (x - 2a)(x - a) = 0. But if I do the multiplication backward I get something that is not the initial equation: (x - 2a)(x - a) = x^2 - xa - 2xa + 2a^2 = 2a^2 - 3xa + x^2 I believe that the correct factorization should be (2x - a)(x - a)
Yes ! , Im sorry
like 53, buen ejercicio
Nice example
The methodology is (1) see the obvious solution (2) divide the cubic by (x - obvious solution) to give a quadratic (3) apply quadratic formula to get the other two solutions. RUclips is sadly full of "tutorial" videos that make step (2) look very mysterious by pretending that you haven't already done (1). Your method starting at 0:37 is not repeatable and doesn't work any better than mine when there isn't an obvious root.
Since the equation is symmetric divide the whole thing by x^2 then substitute t=x+1/x Much easier.
To solve the first one, x^2 + 1/x^2 = 0, we end up with x^4 = -1, which, after some manipulation, we get x = sqrt(i), sqrt(-i), -sqrt(i), -sqrt(-i) To solve the second one, use quadratic formula to get x = 1.209 and x = 5.791 (both are approximated values). What i find curious is that there are seemingly 6 solutions to this quartic equation, which leads me to believe that there is a mistake somewhere in my work. Your method of solving is very interesting to say the least though.
К = -2.
It's really easy tho. Looks very difficult.
💯
Why k=-2 is a solution? -12 is not equal to 12
That was, k^2-k^3=12 I fixed it Thanks !
Love the answer.
I do not understand the math at around 2:20 where you added things up
We factor (k+2)
I know a cubic equation should have 1 real root. so I wanted get an intuitive guess on the real root first. Let f(k) = k^3 - k^2 + 12 this is clearly increasing for k > 0 as k^3 gets bigger than k^2 as k increases so real root must be where k < 0 let's search for root by substituting -1, -2, -3 .... we see that we got lucky at f(-2) = 0 so f(k) = (k+2)*(some quadratic) divide f(k) by (k+2) using algebraic long division f(k) = (k+2)*(k^2 - 3k + 6) k = (-3 +Sqrt(15)* i )/2, (-3 - Sqrt(15) * i )/2 and -2
U can directly substitute e^e^e^x as t.
it's like saying WANNA INTEGRATE F(X)? FIRST FIND INTEGRAL OF F(X) AND SUBSTITUTE THAT INTEGRAL=U SO D(THAT INTEGRAL)=DU SO F(X) DX=DU SO ANSWER IS U! THE INTEGRAL HOW EEXCITING!!!
@@parthhooda3713 tf?
@@parthhooda3713why is bro so mad
the thumbnail says k^3 - K^2 = 12 and this is actually an interesting problem, the one here is trivial and can be solved in memory :)
Yes k = -2. I can see it before watching the video. Then solve the quadratic.
y'all there is a complex solution with a square root of 15 in there lol
I saw the thumnail, assumed k is a natural number and thought you can maybe look at the equation mod m for some different m and figure out what k must be. Didn't want to bother working it out though :D
Amazing explanation 😁
This can be easily done using cube roots of unity.
Multiply both sudes by 16. Substitute 2x+3 as r snd solve
(x+1)⁴ + (x+2)⁴ = 1 <=> (x+1)⁴ + (x+2)⁴ - 1 = 0 Substitute z := x + 3/2. Then let f(z) := (x+1)⁴ + (x+2)⁴ - 1 = (z - 1/2)⁴ + (z + 1/2)⁴ - 1. We know that f(z) is a polynomial of degree four, more specifically: f(z) = 2z⁴ + az³ + bz² + cz + 2(1/2)⁴ - 1, where a, b and c are real coefficients. Additionally, since (-z+1/2)⁴=(z-1/2)⁴ and (-z-1/2)⁴=(z+1/2)⁴, we can see that f(z) = f(-z). If we let z be complex, combined with the fact that f(1/2)=1-1=0 and f(-1/2)=1-1=0, we can conclude that there is a complex number d with f(d) = f(-d) = 0 (and there are no other roots since f is of degree four), such that we receive f(z) = 2(x-1/2)(x+1/2)(x-d)(x+d) = 2x⁴+bz²+cz+2(-1/2)(1/2)(-d)d= 2x⁴+bz²+cz+d²/2 With 2(1/2)⁴-1=d²/2 (see the above formula for f) follows d² = 2²(1/2)⁴-2=1/4-2=-7/4 Therefore, d = ±i sqrt(7)/2. Resubstituting, we then receive the roots x_1 = 1/2 - 3/2 = -1 x_2 = -1/2 - 3/2 = -2 x_3 = i sqrt(7)/2 - 3/2 = (i sqrt(7) - 3)/2 x_4 = -i sqrt(7)/2 - 3/2 = -(i sqrt(7) + 3)/2 Therefore, the only real solutions are -1 and -2.
Not too good at Olympiad integrals but got this one immediately!
By inspection x=-1 and -2 are roots of the given equation. Let y=x+1 and 2y^4+4y^3+6y^2+4y=0 or y^3+2y^2+3y+2=0 after dividing by 2y. Divide by (y+1): y^2+y+2=0 with roots (-1±i√7)/2 and x=(-3±√7)/2