In the figure below lines F and G are parallel If angle 2 is 48 degrees and angle 3 is 62 degrees what is the measure of angle 5

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.