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AmTran_Bus

  • one year ago

More complex number help

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  1. AmTran_Bus
    • one year ago
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    |dw:1440207992331:dw|

  2. AmTran_Bus
    • one year ago
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    Find the real and imaginary parts, prob Euler's again

  3. dan815
    • one year ago
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    |dw:1440208031147:dw|

  4. dan815
    • one year ago
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    you can either write both of them in polar like so, or change the e^-ipi/2 to rectangular

  5. AmTran_Bus
    • one year ago
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    Oh gosh. Soln man says i(sqrt(2)+2i) sin(-pi/2) = 2-isqrt(2)

  6. dan815
    • one year ago
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    |dw:1440208108377:dw|

  7. dan815
    • one year ago
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    ok that means they put it rectangular which is probaly better

  8. AmTran_Bus
    • one year ago
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    That is the way I have worked the other problems.

  9. dan815
    • one year ago
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    |dw:1440208219136:dw|

  10. dan815
    • one year ago
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    much simpler lol

  11. AmTran_Bus
    • one year ago
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    Where did the (-i) come from?

  12. dan815
    • one year ago
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    |dw:1440208320781:dw|

  13. dan815
    • one year ago
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    |dw:1440208347541:dw|

  14. dan815
    • one year ago
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    |dw:1440208362546:dw|

  15. AmTran_Bus
    • one year ago
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    Oh since cos -pi/2 is 0 and sin of -pi/2 is -1?

  16. AmTran_Bus
    • one year ago
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    lol good timing.

  17. dan815
    • one year ago
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    you should get used to think about e^itheta as vectors

  18. dan815
    • one year ago
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    R*e^itheta means theta is the angle and R is the radius

  19. AmTran_Bus
    • one year ago
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    Ok, so that takes care of some, but what about the rest|dw:1440208469040:dw|

  20. dan815
    • one year ago
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    multiply

  21. AmTran_Bus
    • one year ago
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    Like I guess I just cant put it all toghether.

  22. AmTran_Bus
    • one year ago
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    Oh, just by the (sqrt(2)+2i)?

  23. dan815
    • one year ago
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    |dw:1440208530346:dw|

  24. AmTran_Bus
    • one year ago
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    Perfect. I'm gonna re work it on my own and see if I really got it.

  25. dan815
    • one year ago
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    |dw:1440208587135:dw|

  26. dan815
    • one year ago
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    ok good luck

  27. AmTran_Bus
    • one year ago
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    you are the absolute best.

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