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$200pts$

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Question $3$ of $8$

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mpts$.$

Use the indicated substitution to evaluate the integral. Let $x=15tan().$

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$($Give an exact answer. Use symbolic notation and fractions where needed.$)$

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ces.

$100$

${\displaystyle \underset{\frac{1}{2}}{\overset{1}{}}}\frac{dx}{x^2\sqrt[\phantom{2}]{x^{2}225}}=$