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  1. K

    natural rate of unemployment

    could somebody please explain to me the natural rate of unemployment and the nairu, in simple terms. I'm reading the textbook but i dont get it.
  2. K

    complex nos

    hmm i got something different. seeing as the points form a triangle the angle from 1+iroot3 to each of the the other points must be 120. as 120+120+120=360 a revolution i let point B = to 1+i root3 A and C are other two points lying on circle. and O is origin so OB rotated cis120 = OA 1+i...
  3. K

    complex nos

    help with this question Three points, of which 1+i root3 is one point, lie on the circumference of a circle of radius 2 units and centre at the origin. If these points form the vertices of an equilateral triangle, find the other two points. (ANS: -1, 1-i root3) thanks and working pls
  4. K

    how many words

    approx how many for a 8 mark question and a 12 marker thanks
  5. K

    The Tennis Thread

    Re: The Official Tennis Thread tomic can play aggressively if he wants but he just doesnt. i dont remember tomic hitting off pace shots last year. i dont think this type of game will allow him to compete with the very best. cilic was just confused by tomics game due to his inexperience (hes...
  6. K

    Oblique asymptote

    ok i see. so if the highest degree of the denominator is greater than or equal to the highest degree of the numerator i should use the limits method and if the highest degree of the numerator is greater than the highest degree on the denominator i use long division.
  7. K

    Oblique asymptote

    ok i get it. thanks I usually use limits and then i divide by the highest power. but it didnt work for this question.
  8. K

    Oblique asymptote

    hey whats the oblique asymptote for y=x^3/ x+1 The answer is supposed to be y=x^2-x+1 O yea working please. Thanks
  9. K

    studying for pre-lim when should i start?

    wtf... y would u study already? relax and take it easy until yr 12.
  10. K

    What technique is this?

    In feliks skrzynecki it goes "Talking they reminisced About farms where paddocks flowered With corn and wheat, Horses they bred, pigs ..........." It shows the history and background of Feliks and his place of belonging but peter doesnt belong here as he has no link to this history. Its kind...
  11. K

    Avatar (2009)

    Wasnt that gud. Overhyped. Plot was boring and unoriginal. 3D effects werent that gud. meh...
  12. K

    Help

    thanks for your help
  13. K

    Help

    Hey, how would i answer this dot point in the syllabus: Discuss the implications of mass increase, time dilation and length contraction for space travel.
  14. K

    answering this dot point

    •Discuss the importance of Newton’s Law of Universal Gravitation in understanding and calculating the motion of satellites You also have to know the relationship with Kepler's Law: Kepler;s law can be used to find the mass of a planet by determining period and radius of a satellite orbiting...
  15. K

    projectile motion

    quick question. when u launch for eg. a ball over a cliff is the impact velocity's angle below the horizontal? and for eg. if i want to find velocity before it hits the ground, is the angle always above the horizontal??
  16. K

    Projectile Motion

    At max height vertical velocity is 0. Use the formula v squared = u squared + 2as. 0 = u squared + 2 (-9.8)60. where a =g=-9.8 and s=60 from there u find that vert. u=34.3m/s the use v=u+at at max height where vert. velocity is 0 0 = 34.3-9.8t t=3.5 sec therefore, the time of flight is 2f=7sec...
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