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log9 - log3 =

  • log3
  • log6
  • log9

Explanation from PART66Online

The subtraction rule for logarithms states log A - log B = log(A/B). So log9 - log3 = log(9/3) = log3.

S

szaim asked · 11 Apr 2012

how's this?

Community Comments (2)

P
PART66Online 11 Apr 2012
Hey!

Please check log rules: purplemath.com/modules/logrules.htm
T
tsukiyo92 15 Jul 2014
When multiple 'individual' log is add/subtract, they can be convert into single log with multiplication/division.
Above example:

Log 9 - Log 3 (2 individual log)
Convert: Log (9 / 3) [minus->divide, plus->multiply]
= Log (3)

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