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Use a Trigonometric Substitution to Evaluate the Integral dxxx29\int \frac { d x } { x \sqrt { x ^ { 2 } - 9 } }

Question 192

Multiple Choice

Use a trigonometric substitution to evaluate the integral.
- dxxx29\int \frac { d x } { x \sqrt { x ^ { 2 } - 9 } }


A) 3sec1x+C3 \sec ^ { - 1 } x + C
B) 13sin1x3+C\frac { 1 } { 3 } \sin ^ { - 1 } \frac { x } { 3 } + C
C) 13sec1x3+C\frac { 1 } { 3 } \sec ^ { - 1 } \left| \frac { x } { 3 } \right| + C
D) sin1x3+C\sin ^ { - 1 } \frac { x } { 3 } + C

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