Find x in each of the following :
We have 
We can write as.
8! = 8 × 7 × 6!
7! = 7 × 6!
Putting the value, we get
Hence, x = 64
3
Find x in each of the following :
We have
We can write as.
8! = 8 × 7 × 6!
7! = 7 × 6!
Putting the value, we get
Hence, x = 64