9000072803

SubArea: 
Geometric sequences
Level: 
B
Project ID: 
9000072803
Accepted: 
1
Clonable: 
0
Easy: 
1
The following numbers form a geometric sequence. The last term satisfies \(a > 0\). Find \(x\). \[ 1\, ,\ x\, ,\ 2\, ,\ a \]
\(\sqrt{2}\)
\(-\sqrt{2}\)
\(1.5\)
\(- 1.5\)