/ hat will take in a start point, and end point, and a pointer to a functie In this lab you are to write a function called summation t /Your function should return the sunmation of that function from the start to the end point. /Please do the same thing for a product of sequences. ouble xSquared (double x); louble summation(int start, int end, double ("f)(double x) int main() su-tion); printf("%f" return 8; double xsquared(double x) return x x