際際滷

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Rewritetheequationwithoutusinglogarithms
lnA=0.5lnB足5
Solvethesimultaneousequations:
logxy=2
xy=8
7isnotapowerof5
thecalculatorworkswithlogorln.
Calculatelog57correctto3s.f.
 Solvelogarithmicandexponentialequations
applyingbasiclogarithmicrules.
 Calculateandoperatewithnaturallogarithms.
 Deduceandapplytheformulatochange
thebaseoflogarithms.
Bytheendofthelessonyouwillbeableto:
LOGARITHMS
Change of base:
y=logab
re足writewithoutusinglog:
applylogctobothsides:
makeythesubject:
Calculatelog57correctto3s.f.
Calculatelog719correctto3s.f.
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Solveworksheet"Mixedreview"
SolveBookpages69足70

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