7400300007

Question: 
Vyberte všetky členy geometrickej postupnosti $(a_n)_{n=1}^{\infty}$ s $a_1=1$, $a_3=2$ a $a_2>0$.
Project ID: 
7400300007
Answer 1: 
$0$
Answer 1 Correct: 
0
Answer 2: 
$4$
Answer 2 Correct: 
1
Answer 3: 
$6$
Answer 3 Correct: 
0
Answer 4: 
$3\sqrt2$
Answer 4 Correct: 
0
Answer 5: 
$2\sqrt2$
Answer 5 Correct: 
1
Answer 6: 
$32$
Answer 6 Correct: 
1
Answer 7: 
$-\sqrt2$
Answer 7 Correct: 
0
Answer 8: 

$\frac{\sqrt2}{2}$

Answer 8 Correct: 
0