You can put this solution on YOUR website! Give the rectangular coordinates: (-3, -120°).
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x = rcos(theta) = -3cos(-120) = 1.5
y = rsin(theta) = -3sin(-120) = 2.598..
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Cheers,
Stan H.
You can put this solution on YOUR website! Give the rectangular coordinates: (-3, -120°).
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Make a sketch of the radial.
Draw lines to the x and y axes.
Label the angle at the Origin.
x is the cosine, y is the sine of the angle.