Make sure you restrict the domain so it is a one-to-one function (which can be tested using the horizontal line test)
Pigeonhole principleJust me or does anyone else hear pigeons.... -_-
But in all fairness, that would be pretty meta from NESA if they were to put in a question like that. Id be welcoming of such a thing if it were the case. Just dont gimme a repeat 2020
but thats necessary for the binomial distributions topic
yeah i was more referring to continuous random variables and discrete both of which shouldnt be in a x1 exam, but idk anymore
last years php q was a bit freaky but doable after some thonking
have you ever seen the one with a 3x3 grid where you can place either a 1 or a 0 in each square and adding the rows and columns gives a number and you have to prove that at least one of the results at least 3 times or smth i forgot the exact q. your pigeon holes are all possible outcomes i.e. 0,1,2,3 and your pigeons are the sums of the rows i think. thinking about it i think there was a restriction on the number of 1s and 0s.
Advanced is assumed knowledge so technically you should know about it, but since Extension 1 has almost the same amount of content to cover with 30 less marks in the exam, I doubt they would do that
yeah i understand its assumed knowledge but its just a pain to have to go over 2 different textbooks for a 1 unit course
It's helpful to keep in mind for why we can approximate sample proportions to normal distributions under certain conditions, but we don't need to know about it.
8 marks of last years q14 was combinatorics/binomials why would they do it again
they better not im gonna get ptsd mid exam
lol, i dont think its gonna be just a bunch of variables, they are a lot nicer in x1
pretty sure that projectiles was only tested in mc last year meaning we're almost guaranteed some big question in q11-14
I think that projectile motion in Extension 1 is far nicer than in Extension 2. Usually, they tests things like range of motion, time of flight, angle of projection needed to travel 'x' distance, maximum height, all of which can be found by the motion equations.
I'm not sure if forces is assessible in 3U or not ... definitely, it was tested in 4U last year.