#include <iostream>
#include <cmath>
using namespace std;
void task19()
{
cout << "Task:19\n";
cout << "e^x - (y^2 + 12xy - 3x^2) / 18y - 1";
double x = 0, z = 0, y = 0;
long double expl;
cout << "\n\nInput X:";
cin >> x;
cout << "\n\nInput Y:";
cin >> y;
if (18*y - 1 == 0)
{
cout << "\nNo solutions at Y = " << y;
}
else
{
z = expl - (y*y + 12*x*y - 3*x*x) / 18*y - 1;
cout << "\nZ(" << y << ") = " << z;
}
cout << "\n\n\n\n";
}
void task15()
{
cout << "Task: 15\n";
cout << "2 ctg 3x - 1 / (12x^2 + 7x - 5)";
double x = 0, z = 0;
cout << "\n\nInput X:";
cin >> x;
if ((sin(3 * x) == 0) || (12 * x * x + 7 * x - 5 == 0))
{
cout << "No solutions at X = " << x;
}
else
{
z = 2 * cos(3*x)/sin(3*x) - 1 / (12 * x * x + 7 * x - 5);
cout << "\nZ(" << x << ") = " << z;
}
cout << "\n\n\n\n";
}
void task23()
{
cout << "Task:23\n";
cout << "3^x - 4x + (y - √|x|) ";
double x = 0, z = 0, y = 0;
cout << "\n\nInput X:";
cin >> x;
cout << "\n\nInput Y:";
cin >> y;
{
z = pow(3, x) - 4*x +(y - sqrt(abs(x)));
cout << "\nZ(" << x << ") = " << z;
}
cout << "\n\n\n\n";
}
void task27()
{
cout << "Task:27\n";
cout << "cos^2 (sin (1/x))";
double x = 0, z = 0;
cout << "\n\n Input X:";
cin >> x;
if (x == 0)
{
cout << "No solutions at X = " << x;
}
else
{
z = cos(sin(1/x));
cout << "\nZ(" << x << ") = " << z;
}
cout << "\n\n";
}
void task11()
{
cout <<"\n\nTask:11\n";
cout <<"(1 + 1 / x^2)^x - 12*x^2*y";
double x = 0, y = 0, z = 0;
cout << "\n\nInput X:";
cin >> x;
cout << "\n\nInput Y:";
cin >> y;
if (pow(x, 2) == 0)
{
cout << "No solutions at X =" << x;
}
else
{
z = pow((1 + 1 / x*x), x) - 12*pow(x,2)*y;
cout << "\nZ(" << x << ") =" << z;
}
}
int main()
{
system("cls");
task19();
task15();
task23();
task27();
task11();
}
