dominio de funciones

dominio de funciones

University

10 Qs

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dominio de funciones

dominio de funciones

Assessment

Quiz

Mathematics

University

Hard

Created by

Maria Russo

Used 20+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

El dominio de  f(x)=log2(3x6)f\left(x\right)=\log_2\left(3x-6\right)  es: 

 (;2)\left(-\infty;2\right)  

 (2;+)\left(2;+\infty\right)  

 (;2)\left(-\infty;-2\right)  

 [2;+)\left[2;+\infty\right)  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

El dominio de  f(x)=x2+4x3f\left(x\right)=\sqrt{-x^2+4x-3}  

 (1;3)\left(1;3\right)  

 (;1][3;+)\left(-\infty;1\right]\cup\left[3;+\infty\right)  

 [1;3]\left[1;3\right]  

 (;1)(3;+)\left(-\infty;1\right)\cup\left(3;+\infty\right)  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

El dominio de  f(x)=12x21f\left(x\right)=\frac{12}{x^2-1}  

 R{1}R-\left\{1\right\}  

 (;1)(1;+)\left(-\infty;-1\right)\cup\left(1;+\infty\right)  

 [1;1]\left[-1;1\right]  

 R{1;1}R-\left\{-1;1\right\}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

El dominio de  f(x)=x+34x8f\left(x\right)=\frac{-x+3}{-4x-8}  

 R{2;3}R-\left\{-2;3\right\}  

 R{2}R-\left\{2\right\}  

 R{2;3}R-\left\{-2;-3\right\}  

 R{2}R-\left\{-2\right\}  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

El dominio de  f(x)=log2(x3+2x2x2)f\left(x\right)=\log_2\left(x^3+2x^2-x-2\right)  

 (;2)(1;+)\left(-\infty;-2\right)\cup\left(1;+\infty\right)  

 (;2)(1;1)\left(-\infty;-2\right)\cup\left(-1;1\right)  

 (2;1)(1;+)\left(-2;-1\right)\cup\left(1;+\infty\right)  

 (;2)(1;+)\left(-\infty;-2\right)\cup\left(-1;+\infty\right)  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

El dominio de  f(x)=3x95xf\left(x\right)=\frac{\sqrt{-3x-9}}{-5-x}  

 (,3){5}\left(-\infty,-3\right)-\left\{-5\right\}  

 (;3]{5}\left(-\infty;-3\right]-\left\{-5\right\}  

 R{5}R-\left\{5\right\}  

 R{5;3}R-\left\{-5;-3\right\}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

El dominio de    f(x)=178x2+32f\left(x\right)=\frac{17}{\sqrt{-8x^2+32}}  

 (2;2)\left(-2;2\right)  

 [2;2]\left[-2;2\right]  

 (;2) (2;+)\left(-\infty;-2\right)\cup\ \left(2;+\infty\right)  

 (;2][2;+)\left(-\infty;-2\right]\cup\left[2;+\infty\right)  

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