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3 жыл бұрын
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@lithumsamarawickrama
@lithumsamarawickrama 11 күн бұрын
i think the reason students got this wrong is because they maid some sort of error in part B and then the rest of the question just doesn't fall in to place
@Jennyl0v2
@Jennyl0v2 11 күн бұрын
i dont understand for the first question why do you not times the bottom by x at the same time as well
@rahanaishashettima
@rahanaishashettima Ай бұрын
thank you very helpful i was struggling with coordinate geometry till i came across ur channel
@Froze-rt2bk
@Froze-rt2bk Ай бұрын
Isn’t 1/1+x^2 is the derivative of arctan(x) wich means you can already tell the answer is arctan(x)+C where +C is the constant of integration
@grassytramtracks
@grassytramtracks 26 күн бұрын
Yes, but this is only a standard result in further maths, not A level maths, and anyway, for a show that question, you need to fully show all your steps
@sethumliliyanage2923
@sethumliliyanage2923 Ай бұрын
That was so amazing! The fact that I understood what you were saying was just amazing. Thank you so much. This was the first video from you that I watched. I'll be sure to watch plenty more. I immediately added my subscription so looking forward for more fantastic videos! Thank you so much again
@PeachandMario
@PeachandMario Ай бұрын
Sometimes these questions requires you to work out how many of total possible outcomes !
@cartilyy
@cartilyy 2 ай бұрын
this better not come up
@Afif-qd2xz
@Afif-qd2xz 2 ай бұрын
Just use a pen and paper
@jefking2158
@jefking2158 2 ай бұрын
Why did yu stop uploading?
@ProplayerKai
@ProplayerKai 3 ай бұрын
Repent from your sins and turn to Jesus,Jesus is the Way the Truth and the Life
@KaraBaker-c9r
@KaraBaker-c9r 3 ай бұрын
You explain even the trickiest topics so clearly.
@elaethmyersmccraw
@elaethmyersmccraw 3 ай бұрын
but how do we know that we are allowed to leave it as r? was there more info in the question or is it just a convention of the exam board. i feel like normally you can only use the predefined variables.
@chubz1568
@chubz1568 3 ай бұрын
why are you called AI tutor?
@yaseenelhosseiny
@yaseenelhosseiny 4 ай бұрын
It’s -csc^2(x)
@Ojisgay
@Ojisgay 4 ай бұрын
“I wasn’t going for an A*, I was going for full marks” definition of aura
@Ojisgay
@Ojisgay 4 ай бұрын
That has to be the one time they had to round a percentage down instead of up to the nearest whole number 😂
@Ojisgay
@Ojisgay 4 ай бұрын
Maths question with no numbers💀
@Ojisgay
@Ojisgay 4 ай бұрын
Bro how do you talk so fast😂
@Was12249
@Was12249 4 ай бұрын
31:30 heard a bit a Indian come out 😂😂
@Was12249
@Was12249 4 ай бұрын
Also for the first question could you also say that in c also how much hours the student studies/ prepares for the test and not just sleep
@TsionHabtamu-z2i
@TsionHabtamu-z2i 4 ай бұрын
Great gob
@Ojisgay
@Ojisgay 4 ай бұрын
Thank you for making these, now I can do some practice in the year 12 holidays and still keep my skills for year 13
@aadilali6075
@aadilali6075 5 ай бұрын
Helpful
@RoseInnn
@RoseInnn 5 ай бұрын
41:46 cheers mate 👍
@Thesaddestmomentinourlives
@Thesaddestmomentinourlives 5 ай бұрын
I’ve always wondered: where does + pi*n disappear? When we are solving sin(x) = a, x = arctan(a) + pi*n
@nark4837
@nark4837 5 ай бұрын
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.
@danielawobimpe
@danielawobimpe 5 ай бұрын
good video but it would be helpful if we could see the questions too
@aysebegummm
@aysebegummm 6 ай бұрын
thank you so much !!
@dalymaddox8254
@dalymaddox8254 6 ай бұрын
About to do a end of year so hopefully some of the questions are from this paper😂
@thomasbradburne6534
@thomasbradburne6534 6 ай бұрын
Crazy how much more understanding you gain from this video compared to the marks scheme. thankyou
@afoster1471
@afoster1471 6 ай бұрын
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.
@yktime8074
@yktime8074 6 ай бұрын
Very useful video thank you :)
@ashnakamura2411
@ashnakamura2411 6 ай бұрын
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
@ZakariyaM-dq1cu
@ZakariyaM-dq1cu 6 ай бұрын
I think it's getting at the fact that it's modelled as the alpha being added each time, that's what Thomas deduced and think about a person shooting a ball into a net that is far away and give them 5 attempts, in each attempt the person may adjust their shots hence increasing the likelihood of scoring. Hope that helps!
@keiko433
@keiko433 6 ай бұрын
IM COOKED
@jasraj155
@jasraj155 6 ай бұрын
For 8 ii why can't you use the arithmatic series equation with the first and last term?
@keiko433
@keiko433 6 ай бұрын
I am cooked seasoned burned finished marinated finished 💀
@benrodman8013
@benrodman8013 6 ай бұрын
why is he called AI tutor, is his name allen iverson or is he just an actual AI
@tatabobeyye
@tatabobeyye 6 ай бұрын
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!
@khizarbadshah7389
@khizarbadshah7389 6 ай бұрын
come back!
@pythonian9977
@pythonian9977 6 ай бұрын
Let’s go I got both of them right
@Dev6157-cm5
@Dev6157-cm5 6 ай бұрын
Nice work ❤
@A-jx9ib
@A-jx9ib 6 ай бұрын
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
@tatabobeyye
@tatabobeyye 6 ай бұрын
thank you so so much this really helped!!!
@ar-mo7xc
@ar-mo7xc 6 ай бұрын
I HATE how we can sometimes freestyle in maths because wdym you can times cos and divide cos at 1:21:40 😂 😭
@opic6519
@opic6519 6 ай бұрын
Isn’t the algebraic fraction in question 11 improper so don’t you use algebraic division first?
@christa-x
@christa-x 7 ай бұрын
Need to make a return man
@cameronmorgan7252
@cameronmorgan7252 7 ай бұрын
SO HELPFUL what a legend
@wippo42
@wippo42 7 ай бұрын
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
@medievalrat324
@medievalrat324 6 ай бұрын
i think it's because a is a constant whereas x is a variable
@wippo42
@wippo42 6 ай бұрын
@@medievalrat324 true thank u!
@medievalrat324
@medievalrat324 6 ай бұрын
@@wippo42 good luck tmrw!!
@wippo42
@wippo42 6 ай бұрын
@@medievalrat324 u too
@hayleycrowhurst3998
@hayleycrowhurst3998 7 ай бұрын
why is question 10 c in radians ?
@jamiewalker329
@jamiewalker329 7 ай бұрын
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.
@lilpurro6430
@lilpurro6430 6 ай бұрын
uh uh uhhhh