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प्रश्न
Find the Cartesian co-ordinates of points whose polar coordinates are :
(3, 90°)
योग
उत्तर
Here, r = 3 and θ = 90°.
Let the cartesian coordinates be (x, y).
∴ x = r cos θ = 3 cos 90° = 3(0) = 0
y = r sin θ = 3 sin 90° = 3(1) = 3
∴ the cartesian coordinates of the given point are (0, 3).
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