Hello, I need help with this question, it should be written in c++.

2. Design and create a function template with the name as sumofsequence with the return type of the method as template T. The function will take 3 parameters as arguments: sum, x and n. sum and x should have a template data type and n should be int, like the following: template I sumofSequence (T sum, T x, int n) The function will compute using the following equation: sum = 1 + x + 2x + 3x + ... + nx Call this template function from the main and print the final result. Sample Output for: sumofSequence (0,2,2) is equal to 7