log5 4 = a
log 5 3=b
log25 12=?
log₅4=a;
log₅3=b;
log₂₅12=0,5*log₅12=0,5*(log₅4+log₅3)=0,5(a+b).
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log₅4=a;
log₅3=b;
log₂₅12=0,5*log₅12=0,5*(log₅4+log₅3)=0,5(a+b).