Which division problem does the number line below best illustrate? 0 1 3 4 5 6 7 8 9 10 11 12 13 O12÷3=4 O 9÷3=3 O12÷2=6 O 16÷4=4

Let x have probability generating function gx (s) and let un generating function u(s) of the sequence uo, u1, satisfies p(x > n). show that the (1- s)u(s) = 1 - gx(s), whenever the series defining these generating functions converge.