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from the unit circle x^2 + y^2 =1, to (x/2)^2 + (y/0.5)^2 = 1 , you're stretching the unit circle horizontally by a factor a 2, and shrinking vertically to half

it doesn't have to be 3, that's just an example so you have to test values in: x<-2 -2<x<0 0<x<1 x>1 to find out the sign of y(i.e. is it above or below the x axis)

the actual graph would look like http://www.wolframalpha.com/input/?i=plot+y%3D2x%28x-1%29%28x%2B2%29 but the scales are kinda confusing, imagine it being streched out vertically so once you get the intercepts, you need to know the general shape of a cubic function(deduce it from the...

i did exactly what u did i guess u just have to interpret the quesiton as the time for it to fall back from distance D, as stated in "iv) if ... reaches a point... and then falls back" , and both i) and ii) are under part iv) if it used "fall" instead of "return", i guess it would...

+1 hopefully there won't be any clashes in ur timetable

i don't really know how these programs work, but I doubt they are any better than textbooks in terms of teaching maths systematically according to the syllabus

you probably don't need maths for your course, but it's very likely you'll need an ATAR or u forgot to list something

comm/law? from what i've read and heard, the pay is decent, but the hours ...

i don't think they should, esp if you're genuinely interested in it and are starting to put in the effort

1.0125^239 is for the one deposited at the end of the 1st month of the loan, i.e. 239 months ago 1.0125^238 - 2nd month, 238 months ago ... so 1.0125 is the one deposited 1 month ago and 1 (1.0125^0) is just the you payment you make now, which is the final payment so in total you have 240...

+1

what do u mean ? if he pays at the start of the 1st month when there's no interest generated, why would he take a $140000 loan , instead of say $138000?

btw, this guy took away my only chance of having infinite wealth!! http://en.wikipedia.org/wiki/Jacob_Bernoulli

total payments over 20 years, 24150*240=5 796 000 for a 140 000 loan ?! i assumed it's compounded monthly, and i got 1843.5

lol , didn't bother to learn it in the first place how long would it take using latex?

it's oriented in the wrong way this is basically using the same technique as the solution: get rid of theta using trig identities

let's call the foot of perpendicular of C on the extension of AB as point Q, so angle CQP=90 degrees Hint consider the angles in triangle CBQ , then the rest of it would be quite obvious

this may help u to remember it 2pi radians = 360 degrees so 1 radian = 360/2pi degrees http://www.wolframalpha.com/input/?i=cos%281.2*180%2Fpi+degrees%29

couldn't you just find another person who's interested in doing it? but i dunno what's gonna happen if the other person chooses to drop to 3u worst scenario is you have to do it by correspondence, which isn't totally bad, cos you can just ask your teacher if you don't understand some...

I didn't learn much about the courses and stuff on the open days, but that's just me