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  1. byakuya kuchiki

    Polynomial problems

    but doesn't it say values? which means more than one value of b? i dunno. )':
  2. byakuya kuchiki

    Polynomial problems

    Suppose that b and d are real numbers and d /=/ (doesn't equal) 0. consider the polynomial P(z) = z^4 + bz^2 + d. For what values of b does P(z) have a double root equal to root 3i. anyone who has problems with polynomial questions are more than welcome to post here.
  3. byakuya kuchiki

    Projectile motion problem

    thanks alot for the website, you just saved my life. (:
  4. byakuya kuchiki

    Projectile motion problem

    thanks alot. is it possible to work out the solution by deriving the time first?
  5. byakuya kuchiki

    Projectile motion problem

    A long jumper left the ground at and angle of 15 degrees and jumped a distance of 7.0m. considering this result, calculate the velocity of the loing jumper when leaving the ground. please help. XD
  6. byakuya kuchiki

    Polynomials question

    thanks alot to the both of you. (:
  7. byakuya kuchiki

    Polynomials question

    Let P(x) = x^(n+1) - (n+1)x + n, where n is a positive integer. show that P(x) has a double zero at x = 1. (2008 4U HSC, Q5 b) )
  8. byakuya kuchiki

    Parametrics proof

    P(2ap, ap^2) and Q(2aq, aq^2) are two points on the parabola x^2 = 4ay. The tangent at P and the line through Q parallel to the x axis of the parabola meet at point R. The tangent at Q and the line through P parallel to the axis of the parabola meet at point S. Show the co-ordinates of S and R...
  9. byakuya kuchiki

    space problem

    thanks. =DD
  10. byakuya kuchiki

    space problem

    just after launch an astronaut experiences an acceleration of 5g. two weeks earlier, at a fun park, the astronaut went around a 10m horizontal bend at 72kmh in a roller coaster. what is the ratio of the rocket launch to the acceleration at the fun park? help is greatly appreciated. =]
  11. byakuya kuchiki

    More circular motion questions

    omg thank you thank you. =DD
  12. byakuya kuchiki

    More circular motion questions

    Given that a string (0.6m in length), can only sustain a mass of 10kg, find the fastest speed (in rpm) that the string can be rotated (in a horizontal circle) if the mass at the end is 0.2kg? (*g is specified as 9.8m/s^2) help is appreciated!!
  13. byakuya kuchiki

    Circular Motion

    thank you so much. XD but i got a weird question here. it says convert 20 rpm to radians per second, and the answer says 2pi/3. i dunno, am i missing something here? >.<
  14. byakuya kuchiki

    Circular Motion

    having trouble getting the rpm - radians/sec process. someone help?
  15. byakuya kuchiki

    problem solving

    If a+b+c=0, show that (2a-b)^3 + (2b-c)^3 + (2c-a)^3 = 3(2a-b)(2b-c)(2c-a). please help.
  16. byakuya kuchiki

    School Certificate Help.

    LIES ajmain...-_-...you studied your butt off during both year 9 and 10 =P
  17. byakuya kuchiki

    free laptops?

    only year 9s get them...-_-...discrimination...:mad1:
  18. byakuya kuchiki

    SC Results Thread

    Re: 2008SC SC Results ~ ah wells i cant find my reserved space in this thread...lols anyways heres my SC marks just got them today >.< English: 85 :( Maths: 92 Science: 89 *insert swear word/words here* History: 91 Geo: 89 *insert swear word/words here* Computer: 90 T.T
  19. byakuya kuchiki

    SC Results Thread

    English: Maths: History: Geography: Science: Computing: Reserved spaced for when i get my results on friday.....:jedi: (random smiley)
  20. byakuya kuchiki

    What is your prediction on your Bands!?

    LOL...your school still has a MUCH better history than mine...never has a student in my school scored above a Band 6 (or maybe even a Band 5) in SC and HSC before...:lol: thats why we got pressured alot this year since we're the first selective streamed class :(
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