1. 44 marks ] Write a C++ function called my_sum tha arguments, and returns the sum of the two integers? arguments, and returns the sum of the two integers: (usw) 4 marks] Write a C++ function called is Even that takes in sm intreger rgument and returns true or false indicating whether the number is ewen Irksl Write the needed C++ code to find sum of series: 1+X+X There X is an integer number entered by the user from keyboart. X