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ECUACIONES EXPONENCIALES Y LOGARÍTMICAS

Authored by CEVALLOS UESDS

Mathematics

University

Used 147+ times

ECUACIONES EXPONENCIALES Y LOGARÍTMICAS
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

La solución de  3x+1=103^x+1=10  corresponde a 

2

4

9

11

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

La solución de la ecuación  8(x+1)=2(2x+5)8^{\left(x+1\right)}=2^{\left(2x+5\right)}  corresponde a 

2

4

6

10

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La solución de  ln(x3)+ln3=ln18\ln\left(x-3\right)+\ln3=\ln18  corresponde a

7

9

27

57

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Al simplificar la expresión  2log3x+3log3y4log3z2\log_3x+3\log_3y-4\log_3z  se obtiene 

 log3x2y3\log_3x^2y^3  

 log3(x2y3z4)\log_3\left(\frac{x^2y^3}{z^4}\right)  

 log3x2y3z4\log_3x^2y^3z^4  

 log3(x2+y3z4)\log_3\left(x^2+y^3-z^4\right)  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La expresión  12log5x+32log5y+2log5a-\frac{1}{2}\log_5x+\frac{3}{2}\log_5y+2\log_5a  es equivalente a

 log5(a2x3y)\log_5\left(a^2\sqrt{\frac{x^3}{y}}\right)  

 \log_5\left(a^2\sqrt{\frac{y^3}{x}}\right)  

 log5(a2y3x)\log_5\left(\sqrt{\frac{a^2y^3}{x}}\right)  

 log5(a2x3y)\log_5\left(\sqrt{\frac{a^2x^3}{y}}\right)  

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

El logab=c entonces:

ab=c

ba=c

ac=b

bc=a

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Si el loga(x.y) es igual a:

logax . logay

logxa+logya

logxa . logya

logax+logay

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