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9th Class Mathematics blank Question Bank Algebra and Co-ordinate Geometry

  • question_answer
    If  \[\frac{\mathbf{p}}{\mathbf{q}}\mathbf{+}\frac{\mathbf{q}}{\mathbf{p}}\mathbf{=-1}\], then find the  value of \[{{\mathbf{p}}^{\mathbf{3}}}\mathbf{-}{{\mathbf{q}}^{\mathbf{3}}}\] _______

    A) 0         

    B)                                                        2pq

    C) 1         

    D)                                                        -1

    E) None of these

    Correct Answer: A

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