Consider a family tree that consists of just you, your parents,their parents, etc. (no siblings). Assume you are Generation 0, your parents are Generation 1, yourgrandparents are Generation 2, etc. How many ancestors do you haveat Generation n, for any n 0? Give a proof using induction. Solution At generation n, there are 2n ancestors. Proof by induction. Base case: at generation 0, there is just you, so there isjust 2^0=1 people. Inductive step: assume generation n- 1 has 2n-1people. Each has two parents, so there are2*2n-1=2n people in the generation n..