$\"\"$

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The curve is $\"\"$ and $\"\"$ ; $\"\"$ .

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Find $\"\"$ .

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$\"\"$ .

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Differentiate on each side with respect to $\"\"$ .

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$\"\"$

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Power rule of derivatives: $\"\"$ .

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$\"\"$

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$\"\"$

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Find $\"\"$ .

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$\"\"$

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Differentiate on each side with respect to $\"\"$ .

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$\"\"$

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Power rule of derivative $\"\"$

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$\"\"$

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$\"\"$

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Find $\"\"$ :

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$\"\"$

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$\"\"$ .

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$\"\"$

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If the curve is described by $\"\"$ and $\"\"$ and $\"\"$ , the length of the curve is $\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ , $\"\"$ and limits of $\"\"$ .

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$\"\"$

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$\"\"$

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Length of the curve is $\"\"$ units.

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$\"\"$

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The exact length of the curve is $\"\"$ units.