prog0106a-demo

// ConsoleApplication15.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

double fun_z1(double);
double fun_z2(double);
double grad_rad(double x);
double pi = 3.1415926535;

int _tmain(int argc, _TCHAR* argv[])
{
    setlocale(LC_ALL,"Ukrainian");
    printf("Задайте кут у град.");
    double alpha = 0;
    scanf_s("%lf",&alpha);
    double alpha_rad = grad_rad(alpha);
    printf("\nz1=%f z2=%f\n", fun_z1(alpha_rad),fun_z2(alpha_rad));
    return 0;
}

double fun_z1(double alpha_rad)
{
    return (1-2*sin(alpha_rad)*sin(alpha_rad))/(1+sin(2*alpha_rad));
}

double fun_z2(double alpha_rad)
{
    return (1-tan(alpha_rad))/(1+tan((alpha_rad)));
}

double grad_rad(double x)
{
    return x/180 * pi;
}