Domains of Expressions

Project ID: 
6000000033
Accepted: 
Type: 
Layout: 
Question: 
Match the given expressions with their domains.
Questions Title: 
Expressions:
Answers Title: 
Domains:
Question 1: 
$\frac1{x^2-1}+\frac{x+2}{x-2}$
Answer 1: 

$x\in\mathbb{R}\setminus\{\pm1;2\}$

Question 2: 
$\frac{x+1}{x^2+8x+15}-\frac{x-1}x$
Answer 2: 

$x\in\mathbb{R}\setminus\{-5;-3;0\}$

Question 3: 
$\frac3{x^2-2x-15}:\frac x{x-1}$
Answer 3: 

$x\in\mathbb{R}\setminus\{-3;0;1;5\}$

Question 4: 
$\frac x{x^4-5x^2+4}$
Answer 4: 

$x\in\mathbb{R}\setminus\{\pm1;\pm2\}$

Question 5: 
$\frac{x+1}{x^6-7x^3-8}$
Answer 5: 

$x\in\mathbb{R}\setminus\{-1;2\}$

Question 6: 
$\frac1{x^2+5x+7}\cdot\frac{x+1}{x-1}$
Answer 6: 

$x\in\mathbb{R}\setminus\{1\}$

Tex: 
% tiket 32914 \NastavOT{2} \NastavOD{2}