Buktikan: (n^2)/(n!)= 1/((r-1)!) + 1/((n-2)!)

Name: Buktikan: (n^2)/(n!)= 1/((r-1)!) + 1/((n-2)!)
Uploaded: 2024-01-04T08:44:08
Duration: PT4M35.133S
Description: Buktikan: (n^2)/(n!)= 1/((r-1)!) + 1/((n-2)!)