Definición de logaritmo
Si a>0, a=1, b>0, el logaritmo deba la basea es el número c tal que ac=b.
Escribe: c=logab (“base logarítmicaadebes igualc”).
Singularidad: para fijoa,b, c es único (porque ax es estrictamente monótono R para a>0, a=1).
Dominio del símbolologabenb: solo b>0. basea: solo a>0 y a=1.
leerlogab=ccomo la pregunta inversa aac=b
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