$\"\"$

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The integral is $\"\"$ .

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Rewrite the integral as $\"\"$ .

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Assume $\"\"$ .

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Differentiate on each side.

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$\"\"$

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Substitute corresponding values in the integral.

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$\"\"$

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$\"\"$

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Replace $\"\"$ in above expression.

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

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$\"\"$ .

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Consider the antiderivative function by taking $\"\"$ as $\"\"$ .

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Graph the integrand function $\"\"$ and its antiderivative $\"\"$ .

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$\"\"$

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Observe the graph,

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When $\"\"$ is negative, then $\"\"$ is decreasing and $\"\"$ is positive , then $\"\"$ is increasing.

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Hence the curve $\"\"$ is derivative of the curve $\"\"$ .

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Therefore, $\"\"$ is antiderivative of the integrand function $\"\"$ .

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$\"\"$

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$\"\"$ .

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Graph:

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$\"\"$