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Step 1 :

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Formula for the curvature in the plane or in space :

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$\"\"$

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Step 2 :

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

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Compare $\"\"$ with $\"\"$ .

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$\"\"$ and $\"\"$ .

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Substitute the point $\"\"$ in $\"\"$ .

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$\"\"$

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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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Substitute $\"\"$ in above equation.

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$\"\"$

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Find the magnitude $\"\"$ :

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$\"\"$

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Substitute $\"\"$ in above equation.

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$\"\"$

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Step 3 :

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Differentiate $\"\"$ with respect t.

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$\"\"$

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

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Find the cross product $\"\"$ :

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$\"\"$

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Find the magnitude $\"\"$ :

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$\"\"$

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Curvature is $\"\"$

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Substitute $\"\"$ and $\"\"$ in above equation.

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$\"\"$

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The curvature is $\"\"$

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Solution :

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The curvature is $\"\"$