---

// Visual Studio 2019
// Задания 9 и 12

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    double x;

    cout << "Введите x: ";
    cin >> x;

    // 9
    double F9 = x * cos(1 / x) + 2;

    // 12
    double F12 = sin(x) + tan(x);

    cout << "\nРезультаты:\n";

    cout << "9) F(x) = " << F9 << endl;
    cout << "12) F(x) = " << F12 << endl;

    return 0;
}