41:46 cheers mate 👍

I’ve always wondered: where does + pi*n disappear? When we are solving sin(x) = a, x = arctan(a) + pi*n

I'll be honest - I am surprised I got predicted such a low GCSE grade for maths (I was COVID year) after reminiscing today and checking the grade boundaries, it was literally 64% for an 8, and if I recall correctly I got "given" a 6 on my GCSEs 😂then in my official A-Levels I got 4 A*s, and am now doing CS achieving a 92.4% grade average after 1st and 2nd year! After doing this question with no sweat, it solidified the fact that I should have not got a 6!😅 My GCSE grades were quite poor, 1x8, 3x7, 2x6, 2x5 and 1x4 - I didn't get a single 9, even in CS after averaging 95%+, honestly after receiving those grades that was a tough time, then my A-Level predicted grades didn't go as planned either, I got predicted A*ABB, but actually got A*A*A*A*, it is honestly incredible how some schools underpredict so much, but other schools overpredict, I would have thought the incentive would be to overpredict for a better reputation for getting your students into more prestigious universities.

good video but it would be helpful if we could see the questions too

thank you so much !!

About to do a end of year so hopefully some of the questions are from this paper😂

Crazy how much more understanding you gain from this video compared to the marks scheme. thankyou

bro you could have just found the cartesian equation of the curve and equated it to the equation of the tangent and used the discriminant/shown that 3 was the only solution for the quadratic. You made a right mess of this lmao.

Very useful video thank you :)

I don't understand part f) of q 3. for Thomas, the probability of gettting your FIRST dart on target increases, how does that show his probability that a dart hits the target increases? Thanks

IM COOKED

For 8 ii why can't you use the arithmatic series equation with the first and last term?

I am cooked seasoned burned finished marinated finished 💀

why is he called AI tutor, is his name allen iverson or is he just an actual AI

hi thanks so much for this video, I was wondering if you could make some more worked solutions for AS Edexcel papers as I find your videos very helpful!

come back!

Let’s go I got both of them right

Nice work ❤

Why can't you just integrate between 0 and x1 with y= 5sin(4x) for A1, and then between x1 and a for y= 4cos(2x), then add the areas

thank you so so much this really helped!!!

I HATE how we can sometimes freestyle in maths because wdym you can times cos and divide cos at 1:21:40 😂 😭

Isn’t the algebraic fraction in question 11 improper so don’t you use algebraic division first?

Need to make a return man

SO HELPFUL what a legend

For question 11, why cant u use the power rule? (my backup plan after not knowing how to use the logs) [a^x differentiates to ln(a)a^x] So i thought u could say dy/dx =ln(x)x^x Therefore x =1 because ln(1) = 0. Its incorrect but idk why

why is question 10 c in radians ?

I think a much more elegant solution is as follows: Both particles have the same (downwards) acceleration, and thus both particles velocity changes by the same value in the same time interval. Thus the relative velocity (approach speed) between the particles is constant, and to begin with this is 23m/s so it remains 23m/s. The gap between them, 72m decreases at this speed. Thus using time = distance/speed, we get t = 72/23 = 3.13s as the collision time. We can then just work out the distance the top particle fell during this time: s = ut + 0.5at^2 = 6(3.13) + 0.5*(9.8)(3.13)^2 = 67m as required.

thank you for these videos, have helped me so much ❤

For question 8b, why can't you just integrate between 2 and 0?

Can you please add more videos. For A level maths? why have you stopped. I like your explanations better than my teacher. Please add some topics and edexcel exam papers.

for 7ii), how do u know to use Rsin(0-x). How did you recognise it

why is the 2018 stats paper so hard sobs

man i freaking hate stats

Overkill. The suggested substitution turns a routine question into a complex one since (ln2)2^x is the derivative of 2^x + 1. With a straight forward manipulation, the integral is an example of the reverse chain rule. This is not a criticism of your presentation but merely my thoughts on the question structure which penalises an intuitive student. I would prefer to see using the substitution or otherwise...- manifestly questions are structured this way supposedly for the benefit of students but latently, my view is that it is for the benefit of markers.

i love how you talk us through in such a lighthearted funny manner, it actually made me laugh and approach this question in a sensible and calm way, this is probably my first time laughing during a maths video 😭

Great! Thank you😊

God I love you, coming in clutch before exams

y

question 4 for mechanics. Why isn't there a horizontal component of 20g and why is it taken as just 20g when it's not acting perpendicular? I'm really lost lol

wait population should be 22? as after 5 years the value became 22.87 hence the population can not be assumed to increase by the other fraction so wouldn't the lower value be the answer???

arcos isnt on the a level syllabus right? thats what my teacher said

i really appreciate how he actually explains things and doesn't just read off of the ms like most other channels do. what a goat fr

legend

This video is so high quality. Can tell you put a lot of work into making this and its really helped me. Thanks man 👍

did you forget to x 9.8 at @51.42

i think it would make more sense to just do (1-x^2)^-1 then just use u substitution

37:42 Hello! I’m slightly confused about the modulus here. You said that the modulus of r is 1/2, but I assumed it would be 4 since it sets r = 4. I don’t really understand why this is the case, any explanation would be greatly appreciated!

for Q2a) when it asks for one real root, how do you know that this is an intersection with y=cosx and not the root on the x axis? thanks for the video!!

for q20 it doesnt make sense that 6n is always greater than nsquared + 5 cause like the bottom could still be positive even if it was smaller right?? because idk could be 3/2?

At 1:18:13 question 14, why do we not reduce the power by 1 when differentiating so that it's -1.25?