The dominant 9th arpeggio consists of the root (1), major third (3), perfect fifth (5), minor seventh (b7) and major ninth (9). A fingering is formed from each of these notes, creating five positions called root position, 1st inversion (from the third), 2nd inversion (from the fifth), 3rd inversion (from the seventh) or 4th inversion (from the ninth). To learn these fingerings, practice the dominant 9th arpeggio exercise.
= Root 
Inversion Of The Dominant 9th Arpeggio
The dominant 9th arpeggio consists of the root (1), major third (3), perfect fifth (5), minor seventh (b7) and major ninth (9). A fingering is formed from each of these notes, creating five positions called root position, 1st inversion (from the third), 2nd inversion (from the fifth), 3rd inversion (from the seventh) or 4th inversion (from the ninth). To learn these fingerings, practice the dominant 9th arpeggio exercise.