$\"\"$

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The point in rectangular coordinates is $\"\"$ and interval is $\"\"$ .

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Find pair of points in polar coordinates.

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Conversion formula : $\"\"$ and $\"\"$ .

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Find $\"\"$ .

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Substitute $\"\"$ in the conversion formula of polar coordinates.

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$\"\"$

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$\"\"$ .

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$\"\"$

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Find $\"\"$ .

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Since $\"\"$ ,Then $\"\"$ .

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$\"\"$

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$\"\"$

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The point in polar coordinate is $\"\"$ .

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One set of polar coordinates is $\"\"$ .

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Another representation that uses a negative $\"\"$ -value is $\"\"$ .

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The point in polar coordinate is $\"\"$ .

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$\"\"$

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Pair of polar points are $\"\"$ and $\"\"$ .