DISEQUAZIONI ESPONENZIALI E LOGARITMICHE

DISEQUAZIONI ESPONENZIALI E LOGARITMICHE

5th Grade

11 Qs

quiz-placeholder

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DISEQUAZIONI ESPONENZIALI E LOGARITMICHE

DISEQUAZIONI ESPONENZIALI E LOGARITMICHE

Assessment

Quiz

Mathematics

5th Grade

Hard

Created by

sergio la malfa

Used 56+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Risolvere la seguente equazione log(2x3)>log(x1)\log\left(2x-3\right)>\log\left(x-1\right)  

 x>2x>2  

 x>4x>4  

 x<5x<5  

 x<1x<1  

Nessuna delle risposte precedenti

2.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Risolvere la seguente equazione log2(x6)<6log2(x+6)\log_2\left(x-6\right)<6-\log_2\left(x+6\right)  

 x>6x>6  

 10<x<6-10<x<-6  

 x<6x<-6  

 6<x<106<x<10  

Nessuna delle risposte precedenti

3.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

La soluzione dell'equazione  log2(x3)>log2(6x)\log_2\left(x-3\right)>\log_2\left(6-x\right)  è :

 3<x<63<x<6  

 x<3x<3  

 x>92x>\frac{9}{2}  

 x<3  V  x>6x<3\ \ V\ \ x>6  

 92<x<6\frac{9}{2}<x<6 

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Risolvi la seguente equazione esponenziale:  (25)x+3<(52)x2\left(\frac{2}{5}\right)^{x+3}<\left(\frac{5}{2}\right)^{x-2}  

 x<12x<\frac{1}{2}  

 x>12x>-\frac{1}{2}  

 x<12x<-\frac{1}{2}  

nessuna delle precedenti

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Risolvi la seguente equazione esponenziale:  5x21<(15)3x+15^{x^2-1}<\left(\frac{1}{5}\right)^{3x+1}  

 x<3 x>0x<-3\ \vee x>0  

 x>3 x>0x>-3\ \vee x>0  

 3<x<0-3<x<0  

 x>0x>0  

6.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Risolvere l'equazione seguente log5(x+4)+log5(x1)=log5(8x4)\log_5\left(x+4\right)+\log_5\left(x-1\right)=\log_5\left(8x-4\right)  

 x=0; x=5x=0;\ x=5  

 x=2x=2  

 x=5x=5  

 x=1; x=4x=1;\ x=4  

Nessuna delle risposte precedenti

7.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

La condizione di esistenza dell'equazione  log(4x+5)+log(x2)=log(5x)+log3\log\left(4x+5\right)+\log\left(x-2\right)=\log\left(5-x\right)+\log3  è :

 2<x<52<x<5  

 x<2x<2  

 x>5x>5  

 ImpossibileImpossibile  

Nessuna delle risposte precedenti

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