1.

\[\int_{{}}^{{}}{\frac{dx}{x({{x}^{7}}+1)}}=\]          [Karnataka CET 2004]

A.                 \[\log \left( \frac{{{x}^{7}}}{{{x}^{7}}+1} \right)+c\]
B.                 \[\frac{1}{7}\log \left( \frac{{{x}^{7}}}{{{x}^{7}}+1} \right)+c\]
C.                 \[\log \left( \frac{{{x}^{7}}+1}{{{x}^{7}}} \right)+c\]
D.                 \[\frac{1}{7}\log \left( \frac{{{x}^{7}}+1}{{{x}^{7}}} \right)+c\]
Answer» C.                 \[\log \left( \frac{{{x}^{7}}+1}{{{x}^{7}}} \right)+c\]


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