@ is both the parameter and the angle, for example say x^2+y^2=1 is represented by the parametric co ordiantes x=cos@, y= sin@ or P(cos@, sin@)
lets say the angle in the circle is pi/4, you substitue that into the equation as the parameter and you will get x = cos(pi/4) = 1/sqrt(2) and y =...
question 2 the algebra gets very messy and i'm incredibly slow at typing, but a way to solve it is find the equation of the tangent to the hyperbola in terms of x,y and @, then solve simultaneously with the circle eliminating y, so u get the equation in terms of x and @ (it will be a quadratic)...
i've read a few threads on complex numbers here and found that either
1: i slept in class without knowing (hopefully not) or
2: my teacher skipped a whole section on it
how do you do basic algabraic laws on mod-arg form complex numbers
e.g arg(z1/z2) can this be simplified into...
just wondering, does this ranking come directly from the HSC results or in the case of schools that offer IB, convert the IB results then add them before determining the rankings.
let the chain of greatness describe it
Frankenstein>Blade Runner>belonging>Hamlet>nothing!>the justice game
read 100 pages of frankenstein in 1 hour and read 1 page of the justice game in 100 hours
None of the sports i like is up there :S
swimming, cross country, badminton, table tennis, tennis, squash, atheletics, chess.
no need to tell me i suck at teamwork
do any of you know if you can use tabular integration instead of obtaining recurrance formulas?
like integral(x^n * e^x) (S = integral)
f(x) : x^n, g(x) : e^x
f'(x): nx^(n-1) Sg(x) : e^x
f''(x)...
whoa crazy stuff, just makes me want to do a physics degree more even though i only understand half of it.
just a few things i didn't get:
what does r bar and theta bar represent?
and how did u get the first 2 lines of working
a = ....
and F-> = (Gmm)/r^2 * r(hat?)
cause r(hat) or whatever u...
i guess that explains it.
i blugded year 11 and only got slightly above average in some subjects especially the ones i planned to drop
sigh.. i now wish i tried in year 11 cause this and physics is the kind of stuff i wanted to study in uni
this is just what my software design and development teacher said (i don't necessarily agree on it) titles and subtitles use san serif fonts and normal writing uses serif fonts if handed by paper, use san serif fonts for everything if u submit by computer because the printer goes deeper down in...