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-   -   How to calculate the argument (https://www.askmehelpdesk.com/showthread.php?t=532157)

  • Dec 6, 2010, 11:54 AM
    lemon14
    How to calculate the argument
    1.


    2. [math]\sin\varphi - i \cos[\varphi, \varphi \epsilon \(-\frac{\pi}{2},\pi)/math]


    I have a problem in understanding how these were calculated. In the first case, I understood that has been calculated for , but in the second case for , but why? There is the same sign.
  • Dec 6, 2010, 11:55 AM
    lemon14
    2.

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