$\"\"$

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The point is $\"\"$ .

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Now we can find r value

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Apply formula: $\"\"$ .

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ $\"\"$

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The trigonometric functions are $\"\"$ , $\"\"$ , $\"\"$ ,

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$\"\"$ , $\"\"$ , $\"\"$ .