3.5.16

#include <iostream>
#include <cmath>

using namespace std;
void f(float x) {
    if (x == -2) {
        cout << "not defined";
    }
    else cout << (3/abs(pow(x, 3) + 8));

}
int main() {
    float a, b, h, x;
    cin >> a >> b >> h;
    cout << "x\tf(x)\n";
    for (x = a; x <= b; x += h) {
        cout << x << "\t";
        f(x);
        cout << endl;
    }
    return 0;
}