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Exam Hack | CIE A2 Maths | P3 | Vector Question
🕑 Added 2021-08-04 07:45:55 +0000 UTCP1 Exam Hack Vector Question - https://www.youtube.com/watch?v=lvfMj8JlJf0
Comments
Vibhu Tg
in the 7th question i waiting for him to realize what he did lmao .
Jaafar
I'm not sure if there is a quicker way but if you plug in the t values back into that cos(PAB) equation, you'll get 41 degrees for the -2/3 solution which is the acute angle. You'll get 120 degrees for when t=-2 which is what we need. Hope this helped.
Naveen Shan
In question 9ii) of the worksheet, why do we reject the -2/3 solution? How can I confirm that it gives the solution for an acute angle?
Jay Blue
Its in 3D you're thinking about it on a 2D plane
Ata Ul Musawir
not in syllabus mate
Raed Sherif
why in questions 2, we proved in part 1 there is no intersection, but part 2 we found the angle between the 2 lines ? how is this possible ? if there is no intersection how is an angle formed ?
Shubh Mehta
sir, can you make on plane questions also for vector, the questions which involve plane are very tricky to understand
Neko Squealer
for the third question. isnt directional vector of PA and l also perpendicular? why do we use the vector equation of PA?
Intuitive
Why would it matter? If the question specifies radians use radians, if degrees use degrees. Both units are describing the same thing.
saba
hi, do we use radians when dealing with angles in this chapter or degrees?
Jayanth
Sir I tried taking the OB point vector and the results are not the same for me, I redid it with the video and ended up with a 7 as my m value My constant values were also different. Could you please solve this query of mine
Jarod
For Question 17, it said AB=2CD, i tried equating the vectors themselves but it didn't work and then i saw that you've worked it using their magnitude. So how do i know when i should vector or magnitude and why didn't equating the vectors themselves work, like what is the reasoning?
Intuitive
Just any point on the line is fine you will get the same result :)
Behroz Hyder
in question 1, when we take a point to create an equation for line(m). you took (1,-2,2). I thought we were supposed to take the starting point to create an equation or is it that we can use any of the two points?
Intuitive
Probably didn't I'm on that cheap food bruv haha
Muhammad Aleem
Hope you had a great meal afterwards
good boy
hii in the worksheet question 15, can you explain why does OC= OD+AB??? i cant imagine itt
MICHELLE
hello, can you also do mechanics solving papers videos? thank you
Aditya Gupta
May i know when you will upload that video
Intuitive
I'll start looking at that exam after P3 along with Mechanics. I hope the P3 exam hack series is helpful a lot of work went into it.
Roooooha
Hey! since your stats1 was a absolute life saver could you please do stats3 as well
Intuitive
Yep I'll be doing that question last. I need to do Numerical Solution and then I'll do that video.
mathsisnotcool
hey ! just wondering if you did a worksheet for polynomials and reminder therom
Debabrata Majumder
stats next plis
Poliantrix
Awesome! You're literally a life saver dude. Mechanics any time soon?
Intuitive
Thanks dude
dekun Lin
Love u men
