$\"\"$

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The expression is $\"Syntax$ .

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Apply trigonometric inverse property: $\"begin$ .

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Let $\"Syntax$ and $\"Syntax$ .

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$\"italic$ and $\"italic$ .

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$\"italic$

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$\"italic$

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$\"\"$

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$\"Syntax$ $\"equal$ .

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Substitute $\"italic$ , $\"italic$ , $\"italic$ , $\"italic$ .

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$\"equal$

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$\"\"$

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The solution of $\"Syntax$ $\"equal$ .

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, let $\"\"$ .

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The vertices of the parabola are $\"\"$ and $\"\"$ .

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Then the midpoint of the vertices, $\"\"$ in polar coordinates, is the center of the parabola. then the rectangular coordinates are $\"\"$ and $\"\"$ .

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a = distance from the center to a vertex = 36.

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using a = 36 and e = 1 in equation $\"\"$ . \ \

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$\"\"$

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$\"\"$