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7th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-19

  • question_answer
    If \[{{x}^{2}}+\frac{1}{{{x}^{2}}}=23,\] then the value of \[{{x}^{3}}+\frac{1}{{{x}^{3}}}\]is:

    A)  130                             

    B)  120

    C)  \[\sqrt{396}\]               

    D)  115

    E)  None of these

    Correct Answer: E

    Solution :

     Not Available


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