anonymous
  • anonymous
Can someone break down the 5 rules of logarithms for me?
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[\log{a}+\log b=\log(ab)\] \[\log a- logb=\log(a/b)\] \[m \log a=\log a^m\] \[\frac{\log a}{\log b}=\log_{b}a\] \[x^{\log_xa}\]
perl
  • perl
you need a base c for your change of basis formula log_b a = log_c a / log_c b
lgbasallote
  • lgbasallote
^actually...NotSObright is right...:)

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perl
  • perl
i didnt say its wrong, but it can be another base, than the default base
anonymous
  • anonymous
i only remember power/ quotient/ and power rules was there more to it?
anonymous
  • anonymous
product
perl
  • perl
see above
anonymous
  • anonymous
In all the above formulas is for all bases ob default valid until you use that same base
perl
  • perl
all bases valid , yes
anonymous
  • anonymous
so rules only apply or can be different under certain circumstances?
lgbasallote
  • lgbasallote
depends on the situation
anonymous
  • anonymous
You learn through practice
perl
  • perl
ok here are some examples log 2 + log 3 = log (2*3). ln (2/3) = ln 2 - ln 3
perl
  • perl
log 2 + ln 3 does not combine, because they are different bases
perl
  • perl
log 2^3 = 3* log 2 , see if you can find which rule I used
perl
  • perl
so log 8 = log (2^3) = 3 log 2 so log 8 = 3 log 2
anonymous
  • anonymous
ok it cleared it up a bit ty m8
anonymous
  • anonymous
rule of power right?
Directrix
  • Directrix
Summary of log laws and demo problems at the link ---> http://www.themathpage.com/aprecalc/logarithms.htm#laws

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