$\"\"$

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The curves are $\"\"$ and $\"\"$ ; $\"\"$

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Find length:

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The curve is $\"\"$

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

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$\"\"$

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$\"\"$

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Square root on each side.

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$\"\"$

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The curve is $\"\"$ .

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

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$\"\"$

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$\"\"$

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Square root on each side

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$\"\"$

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$\"\"$

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Lenght of the curve is $\"\"$ ; $\"\"$

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Substitute $\"\"$ and $\"\"$ and $\"\"$ in the formula.

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$\"\"$

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By using caluculator: $\"\"$

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The lenght of the curve is $\"\"$ units.

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$\"\"$

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The lenght of the curve is $\"\"$ units.