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  1. L

    Graphing

    How to graph this from scratch? y=x(3+sqrtx) Do we have to know the general form of it?
  2. L

    Newtons Method

    The root of the equation e^x-x^3 = 0 lies between x=-1 amd x=0. Use newton's method once to find an approximation to the root correct to 2 decimla places. This question has me perplexed. Using x=-0.5, and e^x-3x^2 = f'(x) i get a= -0.5 - (f(-0.5)/f'(-0.5)) = 4... something Help?
  3. L

    Polynomial Q

    Find two integers between which the roots of ln(x+3) = x-1 lies. How is this done mathematically?
  4. L

    Complex No.

    I have this question. Find the modolus and argument of each of hte compelx no. z1=2i and z2= 1 + sqrt3i. Mark on an argand diagram the points P,Q,R and S representing z1, z2, z1+z2, and z1-z2 respectively. Deduce the exact values of arg(z1+z2) and arg(z1-z2) For this question, the solutions...
  5. L

    BSB number

    Hello. I was looking for the BSB number of St George bank in kogarah, on montgomery street, but cannot find on their website. I look on this other site, www.bsbnumbers.com, however, it displayed quite a few numbers, showing interest, merchant, limted... etc. I dont know which one it...
  6. L

    Two Double Bonds within Cyclo Hexane

    What would be its name? I.e. a benzene ring minus one double bond.
  7. L

    De Moivre's Theorem

    General question in this form. w is a non real cube root of 1. Show that (1+w)(1+2w)(1+3w)(1+5w) = 21. What is your process of solving this kind of quesitons? Since there are so many answers, i.e. so many types of subsitutions to make?
  8. L

    Locus

    A (4,0) is a point where the circle with the equation x^2+y^2=16 cuts the X-axis. Find the locus of the midpoints of all chords of this circle that contains the point A.
  9. L

    Sequence and SEries Help

    Jasmine deposists 600 into an account on the 1st December each year starting in 1995. She recieves an interest rate of 6% p.a. compounded annually. How much will her total investment be worth by december 2008 How much interest has she recieved.
  10. L

    Trig Help!!

    y=2sinx x y=2 cosx Find the exact area bounded by the curves and the xaxis, between pi and 3pi/2. I keep on getting 4, but according to answers, thats not rite.
  11. L

    Max and Min

    Ahhh This is driving me crazy. A rectangle PQRS is placed inside the scalene triange ABC as shown. If the area of Triangle ABC is constant, prove that the maximum area of the rectangle is one-half (1/2) the area of triangle ABC.
  12. L

    Graph

    How to graph x/x^2-1 = y from scratch? Cause theres no turning pts. Do we just plot the pts?
  13. L

    Visual Acuity?

    What causes visual acuity? I know that its the cones in the eye, but how?
  14. L

    Carolina Liar

    Only found their album very recently. In love with Show me what I am looking for. Anyone else?
  15. L

    Literary Allusions in BR+Frankenstein

    What are generally the effects of litearary allusions? Like quoting of paradise lost in Frankenstein. Or Blake's quote by Roy, in BR.
  16. L

    Writing out side of lines

    What is the deal with writing outside of lines? Do markers look unfavourably towards that?
  17. L

    Holiday During Uni?

    Hey Guys. I was recently given an opportunity to go overseas for about 3 - 4 weeks in april towards march after the HSC. What are my options for uni, say if i make it to the preffered course? Should i take a gap year or just do uni until april and take a 3 wk holiday? Any comment is appreciated.
  18. L

    Locus Q

    The latus rectum of a parabola has endpoints (-2,3) and (6,3). Find two possible equations for the parabola. Very difficult for me.
  19. L

    Remembrance Day

    Is anyone going to Hyde Park for the 11/11 Remeberance Day? If you've been how was it? Can some one just give me the low down?
  20. L

    Complex

    Find three dif values of z for which. z^3 = 1+i/sqrt 2
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