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The point on x² + y² = 9 given by parameter θ = 90° is which?
A(0, 3)
B(3, 0)
C(0, −3)
D(−3, 0)
Answer & Solution
Correct answer: A. (0, 3)
x = 3 cos 90° = 0 and y = 3 sin 90° = 3.
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