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aha ye i think the answer was ((32)^1/10)cis((pi/20) + 2pik/5) --> k = 0,1,-1,2,-2

Shit! what was the correct argument then?

with the circle geo q for part ii) i said that 2 sides of the triangle are constant therefore the third side (the side the q was asking for) is always constant is that right?

A hell of a lot more easier than previous trials graphing was pretty awkward and so was that trig volumes question... so much avenue for mistakes GRRRRRR! couldnt get that final inequalities question and the locus circle geo and that conics q where you had to find PQ... GRRR! Altogether a...

GRRRRR! DAMN YOU CSSA!!! thanks for your help :)

upon expanding i get 4x + x^2 + 4x^3/2 different from what was required to be proven

http://au.geocities.com/ext2papers/ I've got an issue with q 3) c) i) 2008 CSSA I dont understand why - x is added isntead of x for the y value of the function x + y = 0. Why isn't the area of the sqaure (2sqrtx + +x)^2 ? Arent we dealing with distances???? Im sorry if this is is a...

Help...anyone?

These are from Fitzpatrick ex. 29(b) q's 20,23,27 respectively: 20) On the average, a typist has to corect one word in 800. Assuming that a page contains 200 words, find the probability of more than one correction per page. ANSWER = 0.0625 23) A marksman finds that he hits the target 9 out...

ye... i get what ur saying, but the answer or proof to this question involves an incorrect statement, namely sec(theta) > 1; Do you think i should just go with the flow and write this down for my assingment???

The question is question 6) b) ii) of the 2008 HSC: http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2008exams/pdf_doc/2008HSC-mathematics-extension-2.pdf Using the perpendicular distance formula you get SR = \frac{ab\left | esec\theta -1 \right |}{\sqrt{a^{2} tan^{2}\theta +...

Telescoping series - Wikipedia, the free encyclopedia Theres an example in the 2008 HSC ---> question 6 c

This q was in my 3u half yearly but an almost identical q appears in a 4u book so ive posted in this forum: Question (3 marks) - Eight children, consisting of three boys and five girls are to be seated in a row. In how many ways can this be achieved if no boys are to sit next to each other? My...

i) there are 10 spots to fill: Remember always do ur restrictions first: since the three i's cant be in the first spot there are only 7 letters that can, and for the last spot there are 6 since one has been used up in the first spot. in the second spot there are 8 letters that can fill since we...

1. a) using partial fractions: integral from 1 to 0 (5/(2t + 1)(2 - t) dt = integral from 1 to 0 [(2 / 2t + 1) + (1/2 - t)] dt = [ln(2t + 1) - ln(2 - t)] = ln6 b)let t = tan a/2 therefore da = (2/(1 + t^2)) dt when a = pi/2 t = 1 when a = 0 t = 0 therefore: = integral from one to...

Theres a question that asks to draw two waves, both same amplitude and velocity but different frequency/wavelength, and then asks to draw the wave created by the interference of these two; my problem is do i use the the axes dipslcament V time or displacement V distance... Dont they give the...

Thanks heaps guys

if (I_n) = (integral from 1 to 0){x((1 - x^3)^n)} for n>=0 show that: (I_n) = = ((3n)/(3n +2))I_(n - 1) for n>=1 thanks in advance

my maths teacher asked me this How many numbers between 1 and 2.... i answer infinity then... how many numbers between 1 and 100.... infinity??? apparently not.. he says some infinities are bigger than others

.........anyone?