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  3. 12th Class
  4. Mathematics

12th Class Mathematics Sample Paper Mathematics Olympiad Sample Paper-1

  • question_answer
    \[\int {{e}^{3\log x}}{{({{x}^{4}}+1)}^{-1}}dx=\]

    A)  \[\log \left( {{x}^{4}}+1 \right)+C\]  

    B)         \[\frac{1}{4}\log \left( {{x}^{4}}+1 \right)+C\]

    C)  \[-\log \left( {{x}^{4}}+1 \right)+C\] 

    D)  None of these

    Correct Answer: B

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