- Видео 690
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SB MathsYT
Добавлен 17 июн 2019
All things maths.
The content on this channel is mainly geared from A level maths upwards. If you are a GCSE student interested in maths be sure to check out our other channel which can be found in the 'channels' section.
The content on this channel is mainly geared from A level maths upwards. If you are a GCSE student interested in maths be sure to check out our other channel which can be found in the 'channels' section.
A tidy substitution example
In this video we utilise the fact that the derivative of tanx is the square of secx to solve this integral by substitution.
Просмотров: 199
Видео
How to integrate using substitution
Просмотров 16Год назад
In this video we take a look at an example to illustrate how one can use substitution to solve integrals. Substitution is an integration technique that is the opposite of using the chain rule for differentiation. We will have lots more integrals coming up demonstrating the technique.
A level Maths | Simple chain rule example
Просмотров 40Год назад
A level Maths | Simple chain rule example
Simple divisibility proof | Direct Proof
Просмотров 12Год назад
Simple divisibility proof | Direct Proof
A common application of De Moivre's theorem
Просмотров 55Год назад
A common application of De Moivre's theorem
Solving a separable ordinary differential equation
Просмотров 462 года назад
Solving a separable ordinary differential equation
Showing this equation has no integer solutions
Просмотров 3682 года назад
Showing this equation has no integer solutions
Does this equation have any solutions in the integers?
Просмотров 242 года назад
Does this equation have any solutions in the integers?
Finding the coordinates of the minimum for a translated function
Просмотров 162 года назад
Finding the coordinates of the minimum for a translated function
A level further maths matrix proof by induction style question
Просмотров 482 года назад
A level further maths matrix proof by induction style question
Can you find the nth term of this sequence?
Просмотров 202 года назад
Can you find the nth term of this sequence?
Finding all the solutions to this equation
Просмотров 72 года назад
Finding all the solutions to this equation
How to calculate the partial derivatives of a function of three variables
Просмотров 132 года назад
How to calculate the partial derivatives of a function of three variables
Finding the derivatives of the hyperbolic functions
Просмотров 122 года назад
Finding the derivatives of the hyperbolic functions
How to solve a linear homogeneous Diophantine equation
Просмотров 1712 года назад
How to solve a linear homogeneous Diophantine equation
Can you pick the correct substitution?
Просмотров 92 года назад
Can you pick the correct substitution?
Derivative of the natural logarithm from first principles
Просмотров 633 года назад
Derivative of the natural logarithm from first principles
Beriod
Good job sir.
You wrote down the answer but your math ain’t mathing. Is that a 7? Where did the 7 come from
No 7. It’s dy/dx= -1/2y+3.
It's not a seven. It's an arrow! =>
Thanks for the short explanation. Helped lotss!! A life saver man <33
I was expecting that you will save me from the endless searching of the Proof of De Moivre's theorem, and that was why I gave you a like. But no!😫
Cheer~~the condition of being equal or equivalent in value, worth, function, etc.😊
Thanks !
so helpful thankk uu
thanks gang
what do you look for when you're trying to figure out if you need to use sine rule or cosine rule
For the sine rule you need two sides and two angles. That could be 2 known sides, one known angle and an unknown angle that you are trying to find for example. For the cosine rule we require 3 sides and 1 angle
Put the augmented matrix into RREF
bhai sote hue vdo bna rha hai kya 😬
You could've made this actually educational by explaining the process out-loud. Or writing out a formula that can be used to reach the solution. To someone who doesn't know matrices, they have no clue what you're writing.
We have full videos on the channel. The idea of the shorts is to introduce people to the channel and give an idea of some of the content we cover.
First of all, amazing handwriting. Second of all what amazing asmr
Why am I so obsessed with your handwriting😂, it's so smooth😅
Woow....i wasn't expecting that among short of ladies apparently cold picking up firewood.
I love u
Or just use laws of logs and differentiate y= 3lnx which is much easier.
Does this mean that 0 is even? 👀
x(x+1) is a product of two consecutive integers, one of which is even. If this was meant to be a demonstration of the method, you should use an example where that's the easiest method.
Fair comment. With a simple example like this there are lots of ways to go about it, wanted to pick an example where the method could be easily applied. Thanks for watching and commenting :))
A number always keeps its parity when squared and adding numbers of the same parity always yields an even number
Or if you write x = 2k + m, m being either 1 or 0, the proof devolves into pricing the same claim for m, namely m squared plus m is even, but now m is either 0 or 1.
If you factorise the x^2 + x as x(x + 1) first, it becomes much easier to solve. Case 1: x is even => 2(k(2k + 1)) Case 2: x is odd => (2k + 1)(2k + 1 + 1) = 2((2k +1)(k + 1))
Last but one line is 2,1 I think
Correct!
(x+a)(x+b)=x^2+(a+b)x+ab
thats just x (x^x) so it should be x^x^x ??
What is this? What is a matrix?
A matrix is simply an array of numbers. For matrices which are square (have the same number of rows and columns) we can find a quantity called the determinant, which is demonstrated here for a 2x2 matrix.
@@sbmathsyt5306 I appreciate you taking the time to write this, but it didn't really explain anything to me. what is it's purpose? what is the logic of this determinant?
@@CymruCreator matrices can describe transformations and the determinant gives information on the scale factor of a transformation. Also, if a square matrix has a non zero determinant then it can be inverted.
@@sbmathsyt5306 I see! (I don't really, lol) well it seems this is more advanced maths than what they taught when I was in school. Maybe it's the same as this 'calculus' I've heard people talk about or even beyond that.
@@CymruCreator It is part of maths called 'linear analysis' if you wanted to look it up :))
thanks 😊
Sir, please take your teachings easy
😊😊😊😊 yes sir 👌
What if I assumed that the gcd between a and b, is 2 , I will never change any thing in the proof, I mean can you assume what ever you want and just building on it?!!
The idea of proof by contradiction is make an assumption and then get something back that is incorrect using operations we are allowed to use. Then we know that the assumption must be incorrect. If we assume the gcd(a,b)=2 then we have a=2m and b=2n. Then we could consider m and n which must then have gcd 1 and could do the exact same proof
Its hard learning maths using shorts
it must be hard for you to write with that pen
Tq sir
now do one where either or both a and b in a+bi 8s negative
🇮🇳
Shouldn't there be 8(9m+1) instead of 8(9m-1)?????
Nice stuff. Only at the final expression the product should be 8*(9n+1) not 8*(9n-1)
you are indeed correct! Well spotted
pls make more videos on other basic topics
thanku sir
Thanks
Good job bro
Can you help with this (A+B)^T=(A^T+B^T)
This is good idea! You can try a similar approach to the one shown here and I will try to make a video on this over the next couple of days
@@sbmathsyt5306 okay thank you 😊🙏
@@heisnelson6473 ruclips.net/video/RSmsiEGkElE/видео.html
Great sir last you say that we assume a and b are co prime but at last we got both a and b are divisible by 2 so it is irrational because our assemtion is wrong
This is a really offtopic question but: Which part of the UK is your accent from? I'm not a native speaker so I can't tell, however, I'm in love with the UK accents and I'd like to broaden my knowledge in reckognising them! Besides that, thanks for the video, it helped me with my thesis :) Kind regards
This really helped thank you
Glad to hear it!
ᑭᖇOᗰOᔕᗰ 😂
Ur 4’s are kinda weird but thanks for the vid
Thank you!!
Ty this really helped
Glad to hear it