Multiplying a matrix by a matrix | Matrices | Precalculus | Khan Academy

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Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus!

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[איתןגרינזייד]

I was struggling to understand how to multiply matrices by some unclear explanations, this helped a lot, thank you!

[Umirua]

Finally, geez! See, book? Was it so hard to just show this?

[minatochannel]

Skipping My Online Classes, Just Complicated And Confusing,
THANK YOU KHAN ACADEMY! 💓
Love From Pakistan💚

[kony]

What is ED? Words only a man should ever ask.

[tuhocr]

thank you very much. I already knew how to multiply but for a long time, I forget. now you help me remember this easily.

[caspervalente]

Thank you so much! I was struggling on a problem like this for over an hour!!! Thank you!

[shireenshahizad]

Thank
I love your videos - they're so helpful and the ones that I don't need to know for school are also very educational and interesting :)

[syoukhan]

sending love from Italy, thank you so much!

[TechSpree]

This helped me to understand matrices far easier than the textbook, thanks for posting!

[RayhaanKhan-muqu]

wow! so ez!
I actually though this is taught in 11th but thanks to your video i can learn this in 9th!

[punavmirlekar]

great its awesome. ! just what i needed inwas I was stuck in a problem. i got the solution 🙌🙌

[acevedo]

por favor en español para los latinoamericanos que necesitamos mas conocimiento gratuito ya que la falta de estudio no es por falta de interes es falta de acceso a la informacion

[cavier]

This video has helped me so much. Ive watched it countless time

[botrmano]

thank you this was very helpful and easy to understand you are a great teacher

[bmller]

Very good video, but when explaining something like this, you should never use the same numbers in the matrix. It just makes it more difficult to understand. But using different numbers everywhere makes it very easy, :)

[fishswag]

I agree with The_Pyromancer Why IS IT hard for the our school books to show how to do this and save us from going onto youtube and searching it up anyway DONT FORGET TO SUBSCRIBE TO KHAN ACADEMY BECAUSE THEY DO WHAT THE BOOK CAN'T

[apex]

how do we multiply a 3*2 matrix with a 2*2 matrix?

[rasull]

This takes me back to uni, liked doing matrixes was fun

[gerudoking]

The way he says 'us humans' makes me wonder if he's an alien

[NavjotSingh-nsbc]

it's like crying out bankaaiiii! in the last moment.