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8th Class Mental Ability Algebraic Expressions Question Bank Algebraic Identities

  • question_answer
    If \[x-\frac{1}{x}=7,\]What is the value of \[{{x}^{2}}+\frac{1}{{{x}^{2}}}?\]

    A)  47                  

    B)       49                  

    C)  51                  

    D)       77                              

    Correct Answer: C

    Solution :

    Not Available


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