$\"\"$

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(a)

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The integral is $\"\"$ .

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From the table of integrals Formula 12: $\"\"$ .

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

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$\"\"$

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$\"\"$

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

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$\"\"$

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(b)

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The integral is $\"\"$ .

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Solve the integral using partial fractions.

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Rewrite the integrand $\"\"$ .

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in above expression.

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$\"\"$

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Compare $\"\"$ coefficients.

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$\"\"$

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Compare $\"\"$ coefficients.

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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

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$\"\"$

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(a) $\"\"$ $\"\"$ .

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(b) $\"\"$ $\"\"$ .