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21 March, 21:13

In which quadrant does 3 (cos (5pi/3) + isin (5pi/3) lie?

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  1. 21 March, 23:52
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    cos (5pi/3) is positive

    sin (5pi/3) is negative

    the real part is positive and the imaginary part is negative

    this is in quadrant 4
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