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  1. F

    How did you think you went?

    yeh, so freakin easy that i didnt prepare for it.. the way i interpreted "how composers communicate their ideas" is just the techniques. isnt it? like the composer communicates journeys are challengin by ..... features/technqs. blah... btw, do we hav to mention anything on the impact of the...
  2. F

    General Thoughts

    Re: First Post! man, compare with standard/advance forum, here is so deserted...
  3. F

    General Thoughts

    Re: First Post! I found section one hard, esp that last question for text one and the magazine article we hav to create, bs all the way... screwed man!! however, section 2 was soooo straight forward, but mine was sooo pedestrian.. Guess everyone did well in that part. i think i should stop...
  4. F

    past questions

    at the end of 2nd year, the balance is 500x1.03^4. let that equal to M. M is reinvested into the credit union. so Mx1.02^n=633.75 solve for n and u should get n=5.999 , ie approx. 6 times. Since the interest is paid quarterly, divide 6 by 4 = 1.5
  5. F

    integrating ln4x

    i guess u hav to find the area of the curve bounded by the y-axis and subtract it from the rectangle. the area would be 2ln8-(7/4) i think.
  6. F

    HSC Question

    hey, i hav an interesting question. I tried to work this question out using AP series, and the answer i got is 301. tell me where did i go wrong. 2^10 ----> 4 digits 2^20-----> 7 digits 2^30-----> 10 digits ie term1=4 , and common difference is 3 it seems to work for 2^30 ie n=3. so...
  7. F

    past questions

    Q1) 1.5yr?
  8. F

    Predict the UAI that YOU will get.

    oh god.. jus giv me the UAI i wanted... around 88-93 i guess
  9. F

    binomial probability questions

    okay. thank u all very much!
  10. F

    asymptotes problem

    sketch y=x^2 and y=(1/x)^2 then add. there's only one asymp ie x=0 (vertical line)
  11. F

    binomial probability questions

    :) okay thanks. eg for Q3 c) 0.6561x0.1808 =/= 0.1416 even though there is an 'AND'. lol, dun tell the the answer is wrong again.
  12. F

    help with lmitis question

    lim..... __x__ x->±∞ .x<sup>2</sup> divide the top and bottom by x<sup>2</sup>, and u'll get lim ____1_ x->±∞ __x which is zero .: the horizontal asymp is y=0
  13. F

    binomial probability questions

    Thanks people! (0.2)^3 x (0.8)^3 =/= 0.02048. That's what i did too, or.. could the answer be wrong? and another question: does AND always mean multiply?
  14. F

    binomial probability questions

    hi, i have trouble solving the following questions. could someone help plz. thanks. Q1) three uniform tetrahedral (triangular pyramid) each has one black face, one white face, one red face and one green face. when tossed onto a table, three faces of each tetrahedral can be seen. Find the...
  15. F

    Help: super and compound interest

    since jan 2010 is the same as dec 2009, .: from dec 2000 to dec 2009, n=9
  16. F

    Probability, 92

    choose one team from the four teams where the 4 players are chosen from? That's what i hate about perm and comb+ probability, always shooting in the dark...
  17. F

    Help with locus qn.

    |4x-3y+2|/√(16+9)=|3x+4y-7|/√(16+9) .: |4x-3y+2|=|3x+4y-7| ie 4x-3y+2=3x+4y-7 or 4x-3y+2=-(3x+4y-7) ... Ans: x-7y+9=0 and 7x+y-5=0
  18. F

    Help with locus qn.

    PA<sup>2</sup>+PB<sup>2</sup>=2<sup>2</sup> let the coordinate of P be (x,y) use the distance formula: PA=√(x-3)<sup>2</sup>+(y+1)<sup>2 </sup>& PB=√(x+5)<sup>2</sup>+(y-4)<sup>2</sup> PA<sup>2</sup>=(x-3)<sup>2</sup>+(y+1)<sup>2 </sup>&...
  19. F

    Probability, 92

    for question 2, how about (4C1*10C4*30C1+4C1*10C5)/40C5 ? isnt P(at least 4 from the same team)= P(4 from same team)+P(all from same team) ? sry if im wrong. im so bad in probability.. hav u got the answer ravdawg?
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