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    Fujimoto's Avatar
    Fujimoto Posts: 1, Reputation: 1
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    #1

    Mar 15, 2014, 10:03 PM
    Alternating current
    147.3cos(Ѡt+98.1ᵒ)+294.6cos(Ѡt -45ᵒ)+88.4sin(Ѡt +135ᵒ)
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Mar 16, 2014, 07:29 PM
    Alternating current?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #3

    Mar 17, 2014, 04:56 AM
    Fujimoto: what exactly is your question? Assuming you are adding three terms if current, I suggest vector addition - convert from polar coordinates at t=0 to cartesian coordinates and add the vectors, then convert back to polar and determine the resulting magnitude and phase angle. You can do this since omega is the same for all three.
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