$\"\"$

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The function is $\"\"$ .

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Apply derivative each side with respect to t.

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$\"\"$

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$\"\"$

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Evaluate $\"\"$ .

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$\"\"$

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$\"\"$

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The unit tangent vector is $\"\"$ .

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Evaluate $\"\"$ .

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$\"\"$

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$\"\"$

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Apply derivative each side with respect t.

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$\"\"$

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$\"\"$

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$\"\"$

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Evaluate $\"\"$ .

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$\"\"$

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The curvature is $\"\"$ .

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$\"\"$

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The curvature is $\"\"$

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$\"\"$

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The curvature is $\"\"$