$\"\"$

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The function is $\"\"$ , Quadrant III.

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$\"\"$ (Definition of cotangent) \ \

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$\"\"$

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Here x and y is negative in Quadrant III , $\"\"$ . $\"\"$

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Using the Pythagorean theorem, To find the r.

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$\"\"$ (Apply Pythagorean theorem)

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

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$\"\"$

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$\"\"$

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$\"\"$

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Find the six trigonometric functions.

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Substitute these values $\"\"$ .

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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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$\"\"$ ,

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$\"\"$ .

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$\"\"$

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The angles are $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ .