$\"\"$

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The integral is $\"\"$ .

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Let $\"\"$ , then $\"\"$ .

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$\"\"$

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Boundaries:

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If $\"\"$ , then $\"\"$ .

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If $\"\"$ , then $\"\"$ .

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Substitute corresponding values in $\"\"$ .

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$\"\"$

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Apply integration rule: $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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Graph the integrand, $\"\"$ .

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Graph:

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$\"\"$

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Observe the graph :

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The integral $\"\"$ is equal to $\"\"$ .

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$\"\"$

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$\"\"$ .