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  1. E

    3u Mathematics Marathon V 1.1

    5C1? lol
  2. E

    A seemingly easy question...help me

    z+1=cos@ + isin@ + 1 = cos@ + 1 + isin@ -> by using cos2@=2cos^2(@) - 1 cos@=2cos^2(@/2) - 1 cos@ + 1 =2cos^2(@/2) so..z+1= 2cos^2(@/2) + isin@ --> by using sin2@=2sin@cos@ sin@=2sin(@/2)cos(@/2) so...z+1= 2cos^2(@/2) +...
  3. E

    stupis ass trials!!

    everyone get cracking. the more we work the higher we scale each other up!
  4. E

    V for Vendetta

    Movie was crap...but Natalie Portman was GREAT! OHHH RIGHHHT
  5. E

    Basic Trig Question

    touche by taking the sinx and not the tanx out. touche salesman.
  7. E

    Basic Trig Question

    hence the don't use t formula.
  8. E

    Basic Trig Question

    don't use t formula.
  9. E

    HSC Assessments- Thoughts/Results

    exams start on thursday! OMGOMG
  10. E

    Where do you do the HSC

    That's a bit of a generalisation.
  11. E

    Complex Numbers Question

    im pretty sure the answer is, n is any integer except |n|<7 (its actaully 'n' less than OR EQUAL to 6 but theres no sign on my keyboard so yeah) i just made it into mod arg form did de moivre simplified then eventaully got 2^n x 2 (isin npi/6)=0 then got rid of 2^n x 2 and got...
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