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8th Class Mathematics Squares and Square Roots Question Bank Squares and Square Roots

  • question_answer
    If \[\sqrt{2401}=\sqrt{{{7}^{x}}},\] find the value of ?x?.

    A)  \[3\]                                    

    B)                         \[4\]                    

    C)                         \[5\]                                    

    D)                         \[6\]

    Correct Answer: B

    Solution :

    \[\sqrt{2401}=\sqrt{{{7}^{x}}}\]    \[\Rightarrow \]  \[{{7}^{x}}=2401\] \[\Rightarrow \] \[x=4\]


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