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Math Help - log question

  1. #1
    Senior Member
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    log question

    Hello I have an exam tomorrow and dont understand how to do this question on logs

    Simplify
    log2^3 + log2 -log 1/2

    could you please tell me how to do this step by step?
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  2. #2
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    e^(i*pi)'s Avatar
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    Quote Originally Posted by wolfhound View Post
    Hello I have an exam tomorrow and dont understand how to do this question on logs

    Simplify
    log2^3 + log2 -log 1/2

    could you please tell me how to do this step by step?
    log_k(a) + log_k(b) - log_k(c) = log_k \left(\frac{ab}{c}\right)
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  3. #3
    Senior Member
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    Quote Originally Posted by e^(i*pi) View Post
    log_k(a) + log_k(b) - log_k(c) = log_k \left(\frac{ab}{c}\right)
    thanks but I dont understand that!
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