Multiple Choice Questions on Which of these is correct a log3 3 1 b log2 2 2 c log4 4 16 ........... for CDS Exam Preparation

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Multiple Choice Questions

Which of these is correct a log3 3 1 b log2 2 2 c log4 4 16 ...........

Quantitative Aptitude (CDS) Logarithm
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    Which of these is correct?

    a)   log3(3)=1

    b)    log2(2)=2

    c)    log4(4)=16

    d)    log(3+2+4)=log(24)

     log3(3)=1

    Correct Answer

    log2(2)=2

    Incorrect Answer

    log4(4)=16

    Incorrect Answer

    log(3+2+4)=log(24)

    Incorrect Answer
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    Explanation:

    Expressions of the form logm(n)=p are same as mp=n
    if m=n then p=1 will make  log3(3)=1  correct.
    Also, log(m+n+p)=log(m x n x p) is possible only if (m x n x p)=m+n+p

    By: Munesh Kumari
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