discrete math

1. Using the Principle of Mathematical Induction, prove the solution to find the nth term in the general arithmetic sequence a1 = a, and for k > 1, ak+1 = ak + d for n > 1 with first term a and common difference d is an = a+ (n - 1)d. (a) First, we need to show that this is true for no = (b) Next, we assume (c) We need to show