$\"\"$

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The function is $\"\"$ and $\"\"$ to $\"\"$ .

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Area of the region:

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If $\"\"$ is continuous and non-negative on the closed interval $\"\"$ , then the area of the region bounded by the graph $\"\"$ , the $\"\"$ -axis and the vertical lines $\"\"$ and $\"\"$ is given by

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Area $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Re-write the expression.

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$\"\"$

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$\"\"$

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Consider $\"\"$ .

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Partial decomposition of the function:

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$\"\"$

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$\"\"$

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Compare $\"\"$ coefficients.

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$\"\"$

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Compare constants.

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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Substitute $\"\"$ and $\"\"$ in partial decomposition.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$