$\"\"$

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The rectangular coordinates is (x, y ) = $\"\"$ .

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Rectangle-to-Polar coordinates : $\"\"$

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$\"\"$ (Substitute : $\"\"$ )

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ ( $\"\"$ )

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The polar coordinates is $\"\"$ . $\"\"$

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The polar coordinates is $\"\"$ .