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People's Education Edition B High School Mathematical Logarithm Operation.
loga^b= 1÷logb^a(b>； 0, A>0 and A≠0, B≠0)

Loga b = logc b ÷ logc a (inversion formula)

Loga m+loga n = loga (m× n) (logarithmic addition equals real multiplication)

Loga m-loga n = loga (m÷n) (logarithmic subtraction equals real division)

logA^B×logB^C×logC^D=logA^D

Loga MB n = (n÷m) loga b (remember to use it often)

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