SubArea: Geometric sequencesLevel: BProject ID: 9000072804Accepted: 1Clonable: 0Easy: 0The following numbers form a geometric sequence. Find \(x\). \[ x\, ,\ a\, ,\ 3\, ,\ b\, ,\ 9 \]\(1\)\(- 1\)\(- 3\)\(\sqrt{3}\)
