$\"\"$

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Conversion from rectangular coordinates to polar co-ordinates :

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If $\"\"$ is a point with rectangular coordinates $\"\"$ , the polar coordinates $\"\"$ of $\"\"$ are given by $\"\"$ and $\"\"$

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$\"\"$

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The point is $\"\"$ .

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Conversion to polar coordinates :

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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Therefore, the polar coordinates of the rectangular coordinate $\"\"$ is $\"\"$ .

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$\"\"$

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The polar coordinates of the rectangular coordinate $\"\"$ is $\"\"$ .