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6 February, 01:08

Solve: log 3=.5, then log 1/9=?

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  1. 6 February, 04:00
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    If we know that log 3 =.5, we have to solve:

    log 1/9 = ?

    log 1/9 = log 3^ (-2) = - 2 * log 3 = (because: log x^n = n log x)

    - 2 *.5 = - 1

    Answer: log 1/9 = - 1
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