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प्रश्न
Find the Cartesian co-ordinates of points whose polar coordinates are :
(1,180°)
योग
उत्तर
(r, θ) = (1, 180°)
Using x = r cos θ and y = r sin θ, where (x, y) are the required cartesian co-ordinates, we get
x = 1(cos 180°) and y = 1(sin 180°)
∴ x = –1 and y = 0
∴ the required cartesian co-ordinates are (–1, 0).
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Polar Co-ordinate System
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