MAT 2017 | All questions | MAT Livestream Bonus
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- เผยแพร่เมื่อ 1 ส.ค. 2024
- All of the questions for MAT 2017. Do not watch all of this video, you've got better things to do! Click "show more" for links to jump to a particular question.
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0:00 MAT 2017 Q1A
2:09 MAT 2017 Q1B
7:26 MAT 2017 Q1C
12:21 MAT 2017 Q1D
14:21 MAT 2017 Q1E
19:40 MAT 2017 Q1F
28:05 MAT 2017 Q1G
35:50 MAT 2017 Q1H
42:12 MAT 2017 Q1I
47:43 MAT 2017 Q1J
55:22 MAT 2017 Q2
1:09:51 MAT 2017 Q3
1:21:27 MAT 2017 Q4
1:42:31 MAT 2017 Q5
1:53:59 MAT 2017 Q6
2:13:45 MAT 2017 Q7
Errors in this video
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We're running a maths problem-solving livestream with a particular focus on Mathematics Admissions Test problems, live at www.maths.ox.ac.uk/r/matlive every Thursday.
Download the questions in this video at www.maths.ox.ac.uk/system/fil...
thank u so much sir u r giving great content to uplift levels i m sure this channel going to be a rock !!! love from india
aah i wish this year's mat will be like this one!
Hey James, for 1i could you solve this without factorising e.g. quadratic formula for roots or discriminant?
Merci beaucoup Jamés
De rien ^James
Great video! Can someone explain at 3:18 how he "completes the square"? I have never heard of it, and its kinda essential to answer the question
"Complete the square" means to write ax^2+bx+c in the form (px+q)^2+r. It's helpful for solving quadratics, and things that look like quadratics. Here's a BBC bitesize revision article on completing the square www.bbc.co.uk/bitesize/guides/z3hb97h/revision/3 :) ^James
How much time would you recommend to spend on each section of the MAT?
As a first approximation, I usually say 60 mins on the short questions, 90 mins on the long questions, because that's a 40:60 split (like the marks). But you might personally find that a more nuanced approach is better for you (maybe you want to work on the long questions first, or maybe you want to spend more time on them) ^James
Thanks for the vid, for question 4, 1:41:10, how do we know that we can we know that g and 1 join to make a straight line? Could they not meet at different angles?
Sure, if the circles overlap, then the radii could meet at a different angle, but in the case that the circles are just touching, they have a common tangent at the point of contact, which means that the radii are aligned (both at right-angles to the shared tangent!). ^James
Why is Oxford uploading recent years question solutions? Will this year's test be extremely hard? xD
I've always thought it would be good to offer more support for people preparing for MAT, and this year we've been running a livestream covering MAT problems as part of our coronavirus response, over at www.maths.ox.ac.uk/r/matlive . No comment on MAT 2020! ^James
@@OxfordMathematicsPlus Aha, I see. Thanks for reply!
Hi James, for Q3 part (iv), the final part asks you to find c. You said the way to do it was by guessing - was this what the examiners intended you to do? I don't know if this is mathematically correct, but I found c=0.5 using the point of inflection, as c is the point where the ratio of areas are equal (i.e. above and below this point the ratios cross 1, and hence the concavity of the curve of the ratios changes). Sorry if this doesn't make a lot of sense, I was just confused as guess work does not seem very elegant xD
Guessing a root is fine if we just want to find a value for c (I don't think I've proven that it's the only solution or anything like that). It might not be elegant, but it gets the job done! In your explanation, I'm not sure what you mean by "the curve of the ratios", sorry. ^James
there's a mistake @48:35 where you drew the graph between 0 and 2pi, not between 0 and pi as shown in the integral. this doesnt affect the answer itself though
Well spotted! ^James
Fot question 6ii and iii, must the swap be shown? Question states "even if a safe packing order exists" suggesting that it may or may not exist, would that mean that swapping it to show a safe order is optional
Also for 6iv is it necessary to account for objects above i and j? Is answering the question based on just considering a packing order of just i and j in a vacuum good enough to secure all marks?
gravity still applies in a vacuum
@@GamerShortzzz that's neither the vacuum I was referring to, nor does it answer my question
Not whole mat....xam...