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Question
Find the Cartesian coordinates of the point whose polar coordinates are :
`(4, pi/2)`
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Solution
Here,
r = 4 and θ = `pi/2`
Let the cartesian coordinates be (x, y)
Then, x = rcos θ = 4cos `(π/2)` = 0
y = r sin θ = 4sin`(π/2)`= 4
∴ The cartesian coordinates of the given point are (0, 4).
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