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Alg2 Trgi lsn 72.notebook
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Log Laws
Product Rule:
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Example: 1) Find the value of
2) If log(5) = A and log(3) = B, what is log(15)?
log(AB) = log A + log B
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Log Laws
Quotient Rule:
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Log Laws
Power Rule:
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packet page 2Law of logarithms to calculate
In symbols How operations are treated when using logarithms
a product log (A * B) = log A + log B log of product = sum of logswith logs, multiplication converts to addition
a quotient log (A ÷ B) = log A log B log of quotient = difference of logswith logs, division converts to subtraction
a power log (A)n = n log A log of power = multiplier of logwith logs, a power converts to multiplication
a root log (√A) =(1/n) log A log of root = multiplier of logwith logs, a root (fractional power) converts to multiplication
packet page 2
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the following are in the packet pages 35
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