Question:

Some help with logarithms please!!?

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evaluate the question -3 log₃ 0.2

so:

log base 3 to the 0.2^-3

which is a log property

0.2^-3= -0.6

log base 3 to the -0.6 ???

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4 ANSWERS


  1. you are quite incorrect,   0.2^-3=125,

    log3 a=log_b a/log_b (3)

    this is an example of the change-of-bases formula


  2. 0.2^-3 doesnt equal -0.6 it equals 125

    0.2^-3 = (1/0.2)^3

    =5^3

    = 5x5x5 = 125

    s-3log(B3) of 0.2

    =log(b3) 5^3

    =5

    as the base 3 cancels with the cube  

  3. lol i dislike logs

  4. -3 log₃ 0.2

    log₃ 0.2^-3

    log₃ (2/10)^-3

    log₃ (1/5)^-3

    log₃ 5^3

    3log₃ 5

    which equals

    (3ln5)/(ln3)

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