9th Class Mathematics Related to Competitive Exam Question Bank Logarithms

  • question_answer
    Which among the following statements is incorrect?

    A) \[{{\log }_{7}}3.{{\log }_{27}}4.\,{{\log }_{5}}7.{{\log }_{64}}5\]                    

    B) \[{{\log }_{\frac{3}{7}}}\text{ }2.\overline{3}=-1\]

    C) \[lo{{g}_{3-{{\sqrt{8}}^{3+\sqrt{8}}}}}=-1~\]                                   

    D) All the above

    E) None of these

    Correct Answer: E


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