Find the Indefinite Integral $$\int \frac { 1 } { x \sqrt { 9 + 49 x ^ { 2 } } } d x$$

question 118

Multiple Choice

Find the indefinite integral. $$\int \frac { 1 } { x \sqrt { 9 + 49 x ^ { 2 } } } d x$$

• A)
• \(\frac { 1 } { 3 } \frac { \sqrt { 49 x ^ { 2 } + 9 } + 3 } { x } + C\)
• B)
• \(\frac { 1 } { 3 } \ln \left| \frac { \sqrt { 49 x ^ { 2 } + 9 } - 3 } { x } \right| + C\)
• C)
• \(\frac { 1 } { 3 } \ln \left| \frac { \sqrt { 49 x ^ { 2 } + 9 } + 3 } { x } \right| + C\)
• D)
• \(\frac { 1 } { 6 } \ln \left| \frac { \sqrt { 49 x ^ { 2 } + 9 } - 3 } { x ^ { 2 } } \right| + C\)
• E)
• \(\frac { 1 } { 3 } \frac { \sqrt { 49 x ^ { 2 } + 9 } - 3 } { x } + C\)

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