

LOGARITMOS
Presentation
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Manuel Perez
Used 46+ times
FREE Resource
7 Slides • 2 Questions
1
LOGARITMOS

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QUÉ ES UN LOGARITMO
logxy=N
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Definición
Si b>0 y distinto de 1,el logaritmo en base b de un número positivo a es el exponente al que hay que elevar la base b para obtener a. Se representa por logba.
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Cuando no hay base en el logaritmo la base es 10
logN=x <==> 10x=N
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logaritmo neperiano es el logaritmo que tiene como base el número e
ln N= x <==> ex=N
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PROPIEDADES DE LOS LOGARIMOS
1.El logaritmo de la base es siempre igual a 1: logaa=1
2.El logaritmo en cualquier base de 1 es igual a 0: loga1 = 0
3. El logaritmo del producto es igual a la suma de los logaritmos: loga(N⋅M)=logaN+logaM
4. El logaritmo del cociente es igual a la diferencia de los logaritmos.
logaMN=logaM−logaN
5. El logaritmo de una potencia es igual al producto del exponente por el logaritmo de la base:
logaMr=r⋅logaM
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8
Multiple Choice
log21=
=2
=1
=0
No tiene solución
9
Multiple Choice
log5125=3 significa que
125=35
5·3=125
53=125
1253=5
LOGARITMOS

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