adv functions

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Hi!

I need help with determining the value of each of the following logarithmic expressions. Do not change the bases- thx

a) log[base8]4

b)log[base(1/3)]27

  • adv functions -

    let x = log8 4
    then 8^x = 4
    (2^3)^x = 2^2
    2^(3x) = 2^2
    then 3x = 2
    x = 2/3

    do the 2nd one the same way, noting that
    1/3 = 3^-1 and 27 = 3^3

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