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5 September, 16:39

Which set of polar coordinates describes the same location as the rectangular coordinates (4,-4)

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  1. 5 September, 16:43
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    R=4

    theta=pi/2

    x = r cos (theta) = 4 cos (pi/2) = 4 (0) = 0

    y = r sin (theta) = 4 sin (pi/2) = 4 (1) = 4

    (0,4) is the answer.
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