$\"\"$

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The angle is $\"\"$ and the point is $\"\"$ .

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The rotation of $\"\"$ -axis: $\"\"$ .

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Substitute $\"\"$ in above equation.

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$\"\"$

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Substitute $\"\"$ in above equation.

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$\"\"$

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The rotation of $\"\"$ -axis: $\"\"$ .

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Substitute $\"\"$ in above equation.

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$\"\"$

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Substitute $\"\"$ in above equation.

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$\"\"$

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$\"\"$

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Multiply equation (1) by $\"\"$ .

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$\"\"$

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Add equations (1) and (3):

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in equation (1).

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$\"\"$

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$\"\"$ .

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The $\"\"$ - coordinates are $\"\"$ .

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$\"\"$

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The $\"\"$ - coordinates are $\"\"$ .