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Question

Lay down the positions of the points whose polar coordinates are (2a,π2)

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Solution

P(2a,x/2)P(0,2a)
Given polar co-ordinates are (2a,π2)
Then, r=2a and θ=π2
x=rcosθ=2a×cosπ2=0
y=rsinθ=2asinπ2=2a
Thus, the Cartesian co-ordinates are (0,2a).


690003_640836_ans_7938c2f3b7e541e09e345c4b8a438e3d.png

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