Project ID:
7100020101
Accepted:
Typ:
Layout:
Question:
Každá dvojica, ktorú hľadáte, je rovnica a jej množina riešení.
Question 1:
$\sqrt{x-1}=3$
Answer 1:
$\{10\}$
Question 2:
$\sqrt{x+1}=2$
Answer 2:
$\{3\}$
Question 3:
$\sqrt{x-1}=-2$
Answer 3:
$\emptyset$
Question 4:
$\sqrt{x-1}=0$
Answer 4:
$\{1\}$
Question 5:
$\sqrt{x^2-1}=1$
Answer 5:
$\{-\sqrt{2};\sqrt{2}\}$
Question 6:
$\sqrt{2x-4}=2$
Answer 6:
$\{4\}$
Question 7:
$\sqrt{4x+3}=2$
Answer 7:
$\{0{,}25\}$
Question 8:
$\sqrt{x^2+5}=3$
Answer 8:
$\{-2;2\}$
Question 9:
$\sqrt{x^2+1}=1$
Answer 9:
$\{0\}$