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yes that's chord of contact. right?!

i've had a look at the CSSA trial and i goto say the independant was much harder =\

what i've heard is out of the 2000's 2006 is the hardesst for ext 1, not sure bout ext 2. havnt done the hsc's yet though

you have to derive everything other than the chord of contact and pq= -1 for a latus rectum

i would say past trials but their difficulty varies, most are harder than hsc's though

^ haha that is so true ^ if there was a state ranker among us, his post would appear to be boasting:P

well does it say evaulaute the integral or find the area? if it says evaluate teh integral then it would just be 0 since its an odd function

i think all the state rankers are too busy studying than posting their marks here:P

haha >.>

i derive what i can but sometimes you have to remember:(

wow>.> i never learnt it like that haha

i personally don't remmeber the formula, i look at which one will be more useful for the later parts and work it out to that

theres also another way you can do @ lol you can do cos-1 (a/R)

lol np i only learnt it recently too

here: Transformations (equations involving the sum of sin and cos / axillary angle method) asinx + bcosx = rsin(x+α) asinx - bcosx = rsin(x-α) acosx - bsinx = rcos(x+α) acosx + bsinx = rcos(x-α) Where: r = √(a² + b²) α is in the first quadrant such that tanα =...

omg the only text book i don't have lol -.- neway its near the part with general solutions of trignometric equations

which text book do you have? il tell you the page no

mighta got the name wrong, its where you change asin@ - bcos@ into Ccos( @-alpha) where alpha is the initial phase

II) x double dot = -4(x-3) there for n^2 = 4 n = 2 therre fore period = 2pi/2 = pi iii) i would use auxilary angle method on x then differentiate iv) let xdot = 2 and work it out edit: should put xdot = plus or minus 2

also, use your reading time effectively, look at the harder section of the test questions 6-8 and decide which questions you are more confident with, i.e you can score the most marks in and do those first, and do the ones your less confident with after