Hi I've some more questions, your help is greatly appreciated!
1.) and the sum of it's coefficients is 1, what is the sum of the coefficients of
I really have no idea how to start, can't see any patterns..
2a.) Prove that
I did this ok so ignore this part! I had just typed it down as this part may yield a clue for the other parts.
2b.) Hence show that
2c.) Suppose the numbers Pr ( r is a subscript!) are defined by
How do I do them! Please help me thank you so much!!!