Using matrices for transformations | Methods 3 and 4 | MaffsGuru

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  • Опубліковано 28 вер 2024

КОМЕНТАРІ • 15

  • @MaffsGuru
    @MaffsGuru  6 років тому +4

    This video seems to be a little long but the content it is dealing with is fairly complex! But I take the time to break it down to make it much, much simpler. Please, take a look and let me know what you think by leaving a comment below. Thanks so much for watching!

  • @dabythanushee9765
    @dabythanushee9765 3 роки тому +1

    Thanks a lot.This has helped me a lot.

    • @MaffsGuru
      @MaffsGuru  3 роки тому

      You are more than welcome. Thanks for taking the time in leaving a comment. I'm glad you found it helpful. Please spread the word about my channel if you could

  • @jester3069
    @jester3069 3 роки тому +3

    Thank you, subbed :)

    • @MaffsGuru
      @MaffsGuru  3 роки тому +1

      Thanks so much! Please spread the word about my channel if you would :)

  • @leeanmiranda8644
    @leeanmiranda8644 3 роки тому +2

    Thanks a bunch, this was really helpful!

    • @MaffsGuru
      @MaffsGuru  3 роки тому

      You are more than welcome. Thanks for taking the time in leaving me a comment

  • @coleabrahams9331
    @coleabrahams9331 2 роки тому +1

    Hi Maffs Guru, I'm completely new to your channel. This video was really interesting, but I just have a quick question. I was recently busy with a maths question in which there was a function f(x) = 4^x, f^-1(x) = log4(x) and h(x) = 4^-x and the question was to describe in words a single transformation from f^-1(x) to h(x). I soon realized that I could cleverly use matrix transformations to solve this problem, of which the solution was a 90* rotation anticlockwise about the origin, however, I soon realized that I had a problem. When I calculated the composite matrix of the matrix transformation of the reflection about the line y=x followed by the matrix transformation of the reflection about the y-axis, the answer was different to if I had done it the other way around. The one answer was correct, which as I had mentioned was a 90* rotation anticlockwise about the origin, but the other was a 90* clockwise rotation about the origin. But clearly only one of them is correct. How would I know in the future the correct order to multiply these matrix transformations out such that the composite matrix that I get is always correct? I understand that order matters, but it completely baffles me how doing a reflection about the line y=x first as opposed to a reflection about the y-axis leads to a different answer, which it logically shouldn't.
    Please help. I can't sleep not knowing the solution to my problem and my maths teacher is unable to help me.

    • @MaffsGuru
      @MaffsGuru  2 роки тому

      Hi Cole. I'm going to have to read what you've written a few times and then think about it!!! But will do what I can to get back to you. Can you let me know where the question is that you're trying to answer? If I can see the question, then I have a better chance of trying to give you decent help. Please keep sleeping!!!! If you want to email me the question then I think my email address is on my website www.maffsguru.com

    • @coleabrahams9331
      @coleabrahams9331 2 роки тому

      @@MaffsGuru Hi, Maffs Guru. Thanks for replying, but I just figured it out. Thanks, though.

    • @MaffsGuru
      @MaffsGuru  2 роки тому

      @@coleabrahams9331 Phew! I feel like I dodged a bullet there lol. Glad to hear you worked it out. What did you need to do?

  • @kurn2505
    @kurn2505 3 роки тому +2

    Thanks Darren

    • @MaffsGuru
      @MaffsGuru  3 роки тому

      You are more than welcome. Thanks so much for taking the time in making a comment. I hope you found the video really useful. Perhaps you can help by telling other people about my channel and associated website (www.maffsguru.com)