1.1

#include<iostream>
#include<cmath>

using namespace std;

double func(float a, float x) {
    double F;
    F = (1. - a)*sin(a*a + a * x + 2.) / (1. + x * x);
    return F;
}
int main()
{
    float h, b, a,x = 0;
    int n;
    double prom, ymin, ymax;

    cout << "h= "; cin >> h;
    cout << "b= "; cin >> b;
    cout << "n= "; cin >> n;

    for (int i = 0; i < 3; i++) {
        ymin = 100000;
        ymax = -100000;
        cout << "a= "; cin >> a;
        for (int j = 1; j <= n; j++) {
            x =b + (j * h);
            prom = func(a, x);
            if (ymin > prom) ymin = prom;
            if (ymax < prom) ymax = prom;

        }
        cout << ymin << endl << ymax << endl;
    }
    system("pause");
    return 0;
}