$\"\"$

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The point $\"\"$ is in Quadrant III.

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Radius $\"\"$ is $\"\"$ .

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In Quadrant III both cosine $\"\"$ and sine of $\"\"$ are negative.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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Find the value $\"\"$ and $\"\"$ .

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Trigonometric function : $\"\"$ .

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$\"\"$

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$\"\"$ .

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Trigonometric function : $\"\"$ .

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$\"\"$

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$\"\"$ .

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Thus, the coordinates of $\"\"$ are $\"\"$ .

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$\"\"$

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The coordinates of $\"\"$ are $\"\"$ .