Question 1: Write a program that performs the following tasks: 1-Define a function called Calc that accept real values x and integer value n then calculate the real value r where r is: n r = i +1 i=1 Then return the value r. 2-Define a main function that perform the following: a. define a real variables x r and integer variables n. b. enter the values of x and n by user. Call function Calc to calculate r. d. Display variables r