how to write this program by using while or for in C++

Exercise 30 defines the number e and Exercise 31 shows how to approximate the value of e using a different expression. Interestingly, the value of e can also be approximated using the following expression: 3+ 3 4+4 5+5 (n - 1) (n-1)+ n+n Wric a progra your program for n- 3, 5, 10, 50, and 100 hat uses this formuila to approximac thc:a of