Sagot :
Answer:
The number of permutations of n objects taken r at a time is determined by the following formula: P(n,r)=n! (n−r)!
Step-by-step explanation:
Answer:
The number of permutations of n objects taken r at a time is determined by the following formula: P(n,r)=n! (n−r)!
Step-by-step explanation: