$\"\"$

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The diffrential equation is $\"\"$ .

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Rewrite the differential equation.

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$\"\"$ .

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Apply integration on both sides.

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$\"\"$ .

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$\"\"$

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Consider $\"\"$ .

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Squaring on both sides.

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$\"\"$

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Substitute the correponding in the integral.

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$\"\"$

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$\"\"$

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Substiute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .