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Matheracy Matters
Южная Корея
Добавлен 31 авг 2023
Math concepts, problems, and solutions are animated.
후원: KEB하나은행 11719-581333
Paypal: stchostcho@gmail.com
후원: KEB하나은행 11719-581333
Paypal: stchostcho@gmail.com
Surface Area of a Torus [2nd Method]
#calculus #integration #surfaceareaofsolids #revolution #torus
Просмотров: 0
Видео
![Surface Area of a Torus [1st Method]](http://i.ytimg.com/vi/KKjyRZiiTno/mqdefault.jpg)
![Surface Area of a Torus [1st Method]](/img/tr.png)
Surface Area of a Torus [1st Method]
Просмотров 72 часа назад
Indefinite Integral of 1/(r²-x²): ruclips.net/user/shortskZxbvusqoo0 #calculus #integration #surfaceareaofsolids #revolution #torus typo error: 'Surface Area of a Curve V=...' to 'Surface Area of a Curve S...'
Volume of a Torus: Revolution of a Circle about x-Axis
Просмотров 54 часа назад
#calculus #integration #volume #revolution #circle #torus
Definite Integral of sinx/(sinx-cosx) from π/2 to π
Просмотров 67 часов назад
Indefinite Integral of secx: ruclips.net/video/0B9uJM02zSM/видео.html ruclips.net/video/rR1EtJSmuLc/видео.html #calculus #integration #definiteintegral #trigonometry #적분 #정적분 #삼각함수
Volume of a Revolution of y=sinx about the y-Axis
Просмотров 29 часов назад
Indefinite Integral of arcsinx: ruclips.net/user/shorts8tQZ0COp6qA Indefinite Integral of arcsinx: ruclips.net/user/postUgkxxpbDBwIF44CE8SG5djbtfobbAFFia0EM?si=hPqT_xqhu50agswz #calculus #integration #volume #revolution #sinefunction
Volume of a Revolution of y=cosx about the y-Axis
Просмотров 1712 часов назад
회전체의 부피 Indefinite Integral of arccos²x: ruclips.net/video/EhZpPeNT0IA/видео.html #calculus #integration #volume #revolution #cosinefunction
Indefinite Integral of arccos²x
Просмотров 612 часов назад
Indefinite Integral of xarccosx/√(1-x²): ruclips.net/video/b95N4q-LeTQ/видео.html #calculus #integration #indefiniteintegral #integrationbyparts #partialintegration #trigonometry #inversefunction #적분 #부정적분 #치환적분 #부분적분 #삼각함수 #역함수
Indefinite Integral of xarccosx/√(1-x²)
Просмотров 614 часов назад
#calculus #integration #indefiniteintegral #integrationbyparts #partialintegration #integrationbysubstitution #trigonometry #적분 #부정적분 #부분적분 #치환적분
Indefinite Integral of arcsin²x
Просмотров 916 часов назад
Indefinite Integral of xarcsinx/√(1-x²): ruclips.net/video/h1scJd5G4Hk/видео.html #calculus #integration #indefiniteintegral #integrationbyparts #partialintegration #trigonometry #inversefunction #적분 #부정적분 #치환적분 #부분적분 #삼각함수 #역함수
Indefinite Integral of xarcsinx/√(1-x²)
Просмотров 821 час назад
Indefinite Integral of xarcsinx/√(1-x²)
Surface Area of an Ellipsoid Formed by the x-Axis Revolution of an Elllipse
Просмотров 3День назад
Surface Area of an Ellipsoid Formed by the x-Axis Revolution of an Elllipse
Volume of an Ellipsoid Formed by the Revolution of an Ellipse
Просмотров 6День назад
Volume of an Ellipsoid Formed by the Revolution of an Ellipse
Lateral Surface Area of a Conical Frustum [2nd Method]
Просмотров 714 дней назад
Lateral Surface Area of a Conical Frustum [2nd Method]
Lateral Surface Area of a Conical Frustum [1st Method]
Просмотров 2714 дней назад
Lateral Surface Area of a Conical Frustum [1st Method]
Definition of Ellipse III: Locus of Points
Просмотров 1114 дней назад
Definition of Ellipse III: Locus of Points
Definite Integral of cosx/(eˣ+1) from -π/2 to π/2
Просмотров 821 день назад
Definite Integral of cosx/(eˣ 1) from -π/2 to π/2
Indefinite Integral of 1/(x⁴+1) [2nd Method]
Просмотров 421 день назад
Indefinite Integral of 1/(x⁴ 1) [2nd Method]
Indefinite Integral of (coshx-sinhx)/cosh2x
Просмотров 621 день назад
Indefinite Integral of (coshx-sinhx)/cosh2x
Area under a Curve: f(x)=|xsinx| [2nd Method]
Просмотров 621 день назад
Area under a Curve: f(x)=|xsinx| [2nd Method]
Area under a Curve: f(x)=|xsinx| [1st Method]
Просмотров 421 день назад
Area under a Curve: f(x)=|xsinx| [1st Method]
Indefinite Integral of 1/(x⁴+1) [1st Method]
Просмотров 1321 день назад
Indefinite Integral of 1/(x⁴ 1) [1st Method]
wow! excellent 🎉
why does the equation occur only when a/x=b/y ?
plug y=(b/a)x into the expression and compare LHS with RHS
@MatheracyMatters ok, thanks
Wow, I realized that it's was invented by calculus
from Morocco thank you for this wonderful clear proof
nyce👍
WOW what an amazing channel with a lot of animated math Thank you so much❤
It is necessary to show when the minimum value is achievable
Sure, it is. Thanks for your comment, and I'll keep it in my mind. But anyway, this video is not valid any more because of the error that I made.
Il y'a une erreur au niveau des fractions au lieu de ( a+1/b) c'est (a+1/a)
@@AlesterAli Oh! My bad. Thanks for telling me that.
Thank u
Please dont stop making these videos.....🎉❤
Sure I won't, as possibe as I can. Thanks anyway.😀
Diamond❤
321은 왜한거임
별 의미는 없어요. 걍 일종의 시그너처랄까..ㅎ
@@MatheracyMatters뭐야 한국인이었네
@@TYMCCK ㅋㅋ한국 사람 아닌 줄 알았던겨?
hello this is a lesson?
Sort of, yes. But actually, it's also a primer for the next video that I'm going to upload today (or tomorrow). See what's coming up.🙂
gold😅
③ : f(1) = f(1)^2 - f(1) + 1=> f(1)^2 - 2f(1) + 1 = 0 2f(1)? why? what? how?
좌변에 있는 f(1)을 우변으로 옮기면 0=f(1)^2-2f(1)+1이잖아요?
@@MatheracyMatters 아이쿠 감사합니다.^^ 바로 이해가 되었습니다.ㅎㅎ
-3, 0, 4
There is a paper to prove that no such function exist for f(f(x))=x^2-x+1, so the method in this video is pointless
Good point! That's right. Thanks. yaroslavvb.com/papers/rice-when.pdf
머지 10년전 수학 3등급인 나는 10초컷인데
③ : f(1) = f(1)^2 - f(1) + 1=> f(1)^2 - 2f(1) + 1 = 0 여기서 2f(1)은 어디서 튀어나온건가요? 이 부분이 이해가 안감!!!
nice!
Typo Error: italic 'D', unnecessary parentheses
1/2 by Titu .
8
3/2
x=8, In many cases, Koreans can solve this problem
x=2
Mistake: Not 1. It's 0.
Right. I made a mistake. Thanks for informing.
Oops. Narration is not quite correct. Sorry about that.😅
Okay, luckly I still remember middle school math ;)
2:18 how..
혹시 비디오 보면서 잘 이해가 안되시면 설명란 Text Image들 클릭해서 천천히 따라가 보세요.
동그라미 2번 쳐진거를 x=f(u)로 보면 유리함수 역함수 공식에 의해 u=f(x)로 바꿀 수 있습니다.
Since x + 1/x + 4 = 5 does not have real roots, it should be assumed the given equation is true for all 'complex' x, not for all real x.
ruclips.net/video/Eo-9Fe8VDbw/видео.html
Substituting x+1/x with t and putting t=1 seems a lot simpler.
Good idea! Thanks. I think I should make another version by your idea.
난 썸네일 보자마자 이거 생각했는데 이게 한국수학인가 ㅋㅋㅋ
ruclips.net/video/Eo-9Fe8VDbw/видео.html
Oh, there is a mistake of redundancy. Sorry.
AM-GM Between x and 1/x?
Arithmetic and geometric means between x and 1/x? I can't get your point?
@@MatheracyMatters x + 1/x is not less than 2 for x in R so x + 1/x + 4 >= 6
@@sid8646 Oh I got it. Let’s suppose x is in C, then. I should have put f(6) rather than f(5). Thanks anyway. :)
great. ok
omega (x^3=-1)
?
There is a mistake starting at 0:50. It should display xyz =
Oh, My bad. Thanks a lot!