1. In this problem you will show that id 0(na+1) by finding upper and lower bounds. You will do this using two different methods. The first method is to use binding the term and splitting the sum. The second method is to use integration. Complete the following steps and remember to show your work. a) Using the binding the term technique state an upper bound on the sum. b) Using the splitting the sum technique state a lower bound on the sum. c) Using the approximation by integration technique state a upper bound on the sum. d) Using the approximation by integration technique state a lower bound on the sum