11. (Value: 5) The harmonic mean of two numbers is obtained by taking the inverses of the two numbers, averaging them, and taking the inverse of the result. Write a function called harmonic that takes two double arguments and returns the harmonic mean of the two numbers. The function must receive the two values as arguments. Read the two values from the user in the main function. Example When the input ist 9.842 1.2 The output 13 2.1392 cpro Requirements Read the inputs from the user Declare the prototype of your function before the main function Call your function to compute the result Print out the result using the "% 4r format If any of the inputs is zero, consider the inverse of that input to be 0 as well If both inputs are zero return 0. oran