Just wanted to say how underrated and helpful you are, I have a test coming up and this is much better revision than something more popular like corbettmaths. Thank you for your amazing vids!
once again an absolute banger of a video. I Never understood further maths I hope you realise how much you're impacting lives and grades, I was shattered and in tears everyday and night because I just couldn't do something for once and u have helped me immensely, thank u so much, owe u one sir.
Hey thanks for ur videos, i was wondering for 2b 2:30 if i could put rotation 180 centre (0,0) but then i realised it doesn't work all the time, how would i know when it does work and when it doesn't
If you check the video on matrix transformations there are a set of standard matrices you just want to learn. In that video I explain how to tell as well but checking coordinates.
In this question it is being transformed by PQ so we just work out PQ and multiply it. The questions we do in reverse are when we consider the transformations associated with each matrix, they are applied in reverse order. So in this one if you described the transformations it would be Q first, then P.
@@1stClassMaths oh right so sir if the question said find a single matrix that represents transformation p followed by transformation q we would then reverse it at 1:54
For the last question, can you use a matrix (x y) and apply a 90 degree clockwise rotation to it thrice and do it once with a 90 degree anticlockwise rotation and show that the resulting 2 matrices are the same?
When we multiplied the matrices we found that the x value of P was equal to -3y. I appreciate this is confusing because the x-coordinate is in terms of y but it is correct. So P is (-3y, 3x) and also (0, 3). So we equate these. Hope that helps.
@@1stClassMathsI only just saw this months after my GCSEs. Btw thanks so much for this playlist which got me through further maths as I didn’t rlly understand some of the topics in one of my fm teachers classes. If it wasn’t for u I probably would’ve gotten like a 6 but I got an eight which should’ve been a 9 if my calc don’t break on last exam day 😭😭 I was only 3 marks away from
Just wanted to say how underrated and helpful you are, I have a test coming up and this is much better revision than something more popular like corbettmaths. Thank you for your amazing vids!
once again an absolute banger of a video. I Never understood further maths I hope you realise how much you're impacting lives and grades, I was shattered and in tears everyday and night because I just couldn't do something for once and u have helped me immensely, thank u so much, owe u one sir.
Hey thanks for ur videos, i was wondering for 2b 2:30 if i could put rotation 180 centre (0,0) but then i realised it doesn't work all the time, how would i know when it does work and when it doesn't
If you check the video on matrix transformations there are a set of standard matrices you just want to learn. In that video I explain how to tell as well but checking coordinates.
At 1:57, May I ask, why do you do P before Q and not Q before P?
In this question it is being transformed by PQ so we just work out PQ and multiply it. The questions we do in reverse are when we consider the transformations associated with each matrix, they are applied in reverse order. So in this one if you described the transformations it would be Q first, then P.
@@1stClassMaths Cheers for this sir; just started watching and the vids are much, much better than the textbook for me.
@@1stClassMaths oh right so sir if the question said find a single matrix that represents transformation p followed by transformation q we would then reverse it at 1:54
For the last question, can you use a matrix (x y) and apply a 90 degree clockwise rotation to it thrice and do it once with a 90 degree anticlockwise rotation and show that the resulting 2 matrices are the same?
This video will perfect your understanding of matrix transformations
Further maths over. Without you it would have been a big struggle.
How do you make your exam questions? Is it using word or google docs?
powerpoint
For question 4a, why is the matrix multiplied by BA rather than AB?
the matrix for the second transformation goes first, followed by the first transformation
@@isaacdubbin9404Mirko arrives at a party, followed by Lucas. Mirko is first right?
in q5 why do u equate -3y to 0 rather then 3 which is the y value of p'
When we multiplied the matrices we found that the x value of P was equal to -3y. I appreciate this is confusing because the x-coordinate is in terms of y but it is correct. So P is (-3y, 3x) and also (0, 3). So we equate these. Hope that helps.
@@1stClassMathsI only just saw this months after my GCSEs.
Btw thanks so much for this playlist which got me through further maths as I didn’t rlly understand some of the topics in one of my fm teachers classes.
If it wasn’t for u I probably would’ve gotten like a 6 but I got an eight which should’ve been a 9 if my calc don’t break on last exam day 😭😭 I was only 3 marks away from
you are a 🐐