7th Class Mathematics Exponents and Power Question Bank Exponents and Power

  • question_answer
    Which of the following statements is correct?

    A) \[{{({{2}^{3}})}^{2}}\] and \[{{({{3}^{2}})}^{4}}\] are not the same

    B)  \[{{({{2}^{3}})}^{2}}\] and \[{{({{3}^{4}})}^{2}}\] are the same

    C)  \[{{({{6}^{49}})}^{2}}={{6}^{492}}\]                      

    D) \[{{({{8}^{7}})}^{3}}={{8}^{10}}\]

    Correct Answer: A

    Solution :

    (a) \[{{({{2}^{3}})}^{2}}={{2}^{6}}\]and \[{{({{3}^{2}})}^{4}}={{3}^{8}}\]now\[{{2}^{6}}\ne {{3}^{8}}\] \[\therefore \]  not same and hence correct statement.


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