7th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    A          B          C         D

    A) 3          1          2          4

    B) 3          1          4          2

    C) 1          2          3          4

    D) 1          3          2          4

    Correct Answer: B

    Solution :

    (A) \[{{({{3}^{3}})}^{2}}={{({{3}^{2}})}^{3}}={{(9)}^{3}}\] (B) \[{{({{0}^{6}})}^{12}}={{({{0}^{18}})}^{15}}=0\] (C) \[{{({{644}^{3}})}^{0}}=1\]and\[{{({{3}^{0}})}^{644}}={{(1)}^{644}}=1\] (D) \[{{({{2}^{2}})}^{6}}={{(4)}^{6}}=4\times 4\times 4\times 4\times 4\times 4\] \[=16\times 16\times 16={{(16)}^{3}}\]


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