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Evaluate the integral using the indicated trigonometric substitution. sqrt(x2 − 81)/x dx, x = 9 sec()
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Evaluate the integral using the indicated trigonometric substitution. sqrt(x2 − 81)/x dx, x = 9 sec()

User Remco Ros
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C=C' - 81/2 In 9

hope it helps:))

User BoomShaka
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