$\"\"$

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Find for what values of $\"\"$ , $\"\"$ in the interval $\"\"$ .

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Consider the function $\"\"$ .

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Rewrite the function $\"\"$

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$\"\"$

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$\"\"$

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The general solution for $\"\"$ is $\"\"$ .

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The solution of $\"\"$ is $\"\"$ .

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Substitute $\"\"$ , $\"\"$

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

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

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Therefore, $\"\"$ for $\"\"$ .

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$\"\"$

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Find for what values of $\"\"$ , $\"\"$ in the interval $\"\"$ .

\

Consider the function $\"\"$ .

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Rewrite the function $\"\"$

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$\"\"$

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$\"\"$

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The general solution for $\"\"$ is $\"\"$ .

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The solution of $\"\"$ is $\"\"$ .

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For $\"\"$ , $\"\"$

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Therefore, $\"\"$ for $\"\"$

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$\"\"$

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

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