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Find the cartesian co-ordinates of the point whose polar co-ordinates are π(12,π3). - Mathematics and Statistics

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प्रश्न

Find the cartesian co-ordinates of the point whose polar co-ordinates are `(1/2, π/3)`.

योग

उत्तर

Here, r = `1/2` and θ = `π/3`

Let the cartesian coordinates be (x, y).

Then, x = r cos θ = `1/2 cos  π/3 = 1/2 xx 1/2 = 1/4`

And y = r sin θ = `1/2 sin  π/3 = 1/2 xx sqrt(3)/2 = sqrt(3)/4`

∴ The cartesian coordinates of the given point are `(1/4, sqrt(3)/4)`.

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2021-2022 (March) Set 1

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