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7th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    \[{{\left( \frac{1}{3} \right)}^{7}}\div {{\left( \frac{-1}{3} \right)}^{4}}\]is equal to

    A)  \[{{\left( \frac{1}{3} \right)}^{11}}\]                     

    B)  \[{{\left( \frac{1}{3} \right)}^{3}}\]

    C)  \[{{\left( \frac{1}{3} \right)}^{-3}}\]                      

    D)  \[1\]

    Correct Answer: B

    Solution :

    \[{{\left( \frac{1}{2} \right)}^{7-4}}={{\left( \frac{1}{3} \right)}^{3}}\]            \[\left\{ {{\left( -\frac{1}{3} \right)}^{4}}={{\left( \frac{1}{3} \right)}^{4}} \right\}\]


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