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The coordinates of point B can be found using: x = r * cos θ = 100 * cos(30 degrees) = 100 * (√3/2) = 86.6. y = r * sin θ = 100 * sin(30 degrees) = 100 * (1/2) = 50. So, coordinates of point B = (86.6, 50). Correct Answer: d) (86.6, 50)
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