(2nd HARDEST) A Level Maths Tricky Question #15

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[AS-rqtr]

Who else is watching this jus before the exam!!!!

[revcs]

did mock set 2 paper 1 today, had this question and the hardest a level maths tricky question both in it lol. i was humbled to say the least

[charlierutherford]

Do you reckon you could do some hard stats questions from unexpected topics if that makes sense. I know most of the hardest questions come from normal and binomial distrubution but i havent seen many hard questions in other topics in exam papers. if not no problem and thanks for doing the circle questions.

[Pessidoggy]

thank you i really appreciate these videos please continue them :)

[AG-qlsy]

After that introduction to the question there’s no way I’d ever even consider to attempt it lol

[AlevelStudent-cy]

Hi Sir, for the ratio you form between the radius and the height, is this just to get the volumes in terms or r and h so you can differentiate with respect to one variable ?

I’ve never seen another shape where this has to be done so it is a little strange . Do you know any other shapes where this could be needed ?

Video was amazing as always, thanks

[zacurrya]

if you can put c at either end of the equation when integrating, could you not have found it as -64/5

[cuentosparaninos]

I dont understand why you get different answers when you differentiate the sub values for r in comparison to subbing values first then differentiating

[AlevelStudent-cy]

These differential modelling questions are some of the hardest for me. Was some good practice ! Was this from a madras maths paper?

Also for part C, could you not sub in 2580 seconds and see if the value for H is close to 0? I did that and i got the height as 0.57m which is not close to 0. Why is this wrong ?

[clowde]

In my opinion this is 10x harder than the parametric one

[dmpm]

hi sir, in which past paper did this abomination come up in?