$\"\"$

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The integral equation is $\"\"$ .

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(a) Evaluate the integral.

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$\"\"$

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Assume $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Table of integrals 83: $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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By trail and error method $\"\"$ .

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$\"\"$

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(b)

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The integral is $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$ .

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Consider the integrand as function $\"\"$ .

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Graph the function $\"\"$ on interval $\"\"$ .

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$\"\"$

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Observe the graph:

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$\"\"$ .

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Hence, the value of $\"\"$ is $\"\"$ .

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$\"\"$

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(a) $\"\"$

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(b)

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Graph the function $\"\"$ on interval $\"\"$ .

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$\"\"$