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10 December, 09:24

Log base 3 (1/9) = x

What is x?

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Answers (1)
  1. 10 December, 09:32
    0
    Log base 3 (1/9) = x

    rewriting the equation in exponential form, we get:

    3 ^x = 1/9

    now,

    Guess and check.

    x = - 1

    3^-1 = 1/3

    this doesn't work.

    x = - 2

    3^-2 = 1/3^2

    = 1/9

    this works.

    so x = - 2
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