#include <stdio.h>
#include <math.h>
 
int main() {
    double a = 2.5;
    double b = 0.4;
 
    double t_start = -1.0;
    double t_end = 1.0;
    int num_points = 50;
 
    for (int i = 0; i < num_points; i++) {
        double t = t_start + i * (t_end - t_start) / (num_points - 1);
 
        double denominator = a * t + b;
        if (fabs(denominator) < 1e-10) {
            printf("%.4f\t  Ошибка: деление на ноль\n", t);
            continue;
        }
 
        double root_expression = a * t * t + b * sin(t) + 1;
        if (root_expression < 0) {
            printf("%.4f\t  Ошибка: отрицательное подкоренное выражение\n", t);
            continue;
        }
 
        double numerator = pow(root_expression, 0.5);
        double y = numerator / denominator;
        printf("%.4f\t %.6f\n", t, y);
    }
 
    return 0;
}

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