#include <cstdlib>
#include <iostream>
#include <math.h>
using namespace std;

int main(int argc, char *argv[])
{
double expression1 = tan(10) + 1;
double expression2 = 1.0/tan(10) + 1;
if ((expression1/expression2) == tan(10))
{
cout << "This is true"  << endl;
}
else
{
cout << "This is not true"  << endl;
}

cin.get();
}