using System;
public class Test
{
public static void Main()
{
// your code goes here
double a = 3.6;
double z = 1 - (1 / (double) 4) * Math.Pow(Math.Sin(2 * a),2) + Math.Cos(2 * a);
double z1 = Math.Pow(Math.Cos(a),2) + Math.Pow(Math.Cos(a), 4);
Console.WriteLine(z);
Console.WriteLine(z1);
}
}
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