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is anyone goin to the one on the 13th? mm newaiz after tmrw lets all scan our notes n put em up here :D

is there a way of doing this using the tangent formula

thx guys how many d.p's should we use wen answering numerical questions

ok how about if the same cannon (50m high) was fired at an angle of 45 degrees at 60m/s wot is the new range

thx guys

working out plz =)

A coastal defence cannon firse a shell horizontally from the top of a 50.0 m high cliff, directed out to sea with a velocity of 60 ms^-1. Determine the range of the shell's trajectory

hey how would i find the tangent of y = x^2+1 @ 1,2 similarly with x^2-x-2=y @ (-2,4)

mm another question if ur doing a geometric series, and ur using logarihtms to find out the nth term, are u meant to presume the ratio is positive (wen using logs)? example: which term of the series 8 - 4 + 2 - ... is equal to 1/128 a = 8, r = -0.5 1/128 = 8(-0.5)^n-1...

some1 do B for me plz im stuck >.<

actutaly nvm i got it alreadi haha

hey just wondering how to do this question a secant which passes through the point (0,-a) cuts the parabola x^2 = 4ay at P,Q with parametrs p,q a)prove pq= 1 b)if S is the focus show that 1/PS + 1/QS = 1/a

how do u find the density of a planet? i am referring to questoin 9(c) of chapter 1 questions in jacaranda book

on the topic of differentiation some1 differentioate x sqrt(x+1) or x(x+1)^(1/2) im stuck >.<

prelim is a thing of the past pfft that was so.. last week oh wait... im not in yr 12 yet haha 1 more week :D

ahaha and i can tell u about paying extra... say 3-4 gigs over... lets just say i got screamed at... lucki i "fixed" things up by changing isp's to iinet..

lol i haven done my hw so yeah.. there was that q and then i turn the page and i find the rule i rahul was on about lolz stupid me... umm i do 3U prelim whilst in year 10 funny thing is im putting my sc more in priority than prelim hahah... i am really gonna start doin work starting...

yr10 accelerated

yes i know but look at the features of myie2... its so good

stop calling me dumb! jk i do 4unit