$\"\"$

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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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Coversion formula : $\"\"$ and $\"\"$ .

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Find $\"\"$ .

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Substitute $\"\"$ i 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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$\"\"$ is not in the interval $\"\"$ , $\"\"$ .

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The pair of rectangular coordinates is $\"\"$ .

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Find the second pair of polar coordinate.

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

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

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

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$\"\"$

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The pair of rectangular coordinates $\"\"$ and $\"\"$ .