c语言小白，真心求教大佬们这题咋做

#include <stdio.h>
#include <math.h>

int main() {
    double PI = 3.1415926;
    double result = (sqrt(5)+sqrt(3))/fabs(-5.0+sin(PI/4));
    printf("%f",result);
    return 0;
}

#include<math.h>

//main:
const double PI=3.1415926;
double res;
res=(sqrt(5)+sqrt(3))/fabs(-5+sin(PI/4));