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12 June, 18:20

Given r=8 and 0 = 1.85pi, find the Cartesian coordinates. a. (7.13,-3.63) b. (7.08,-3.67) c. (-7.08,3.67) d. (-7.80,-3.67)

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  1. 12 June, 18:21
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    Step-by-step explanation:

    polar coordinates = R (8), θ = 1.85π (1.85 x 180 = 333°)

    x - coordinate = r cosθ = 8 cos333

    = 7.13

    Y-coordinate = r sinθ = 8 sin 333

    = - 3.63.

    (7.13, - 3.63)

    Option a is the answer.
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