Just asking, what book is it?
Answer:
C
Step-by-step explanation:
P(n,r)=P(13,9)
=13!(13−9)!
=2.594592E+8
= 259459200
Answer:
Binomial theorem, statement that for any positive integer n, the nth power of the sum of two numbers a and b may be expressed as the sum of n + 1 terms of the form.
