ФІО = Саня Пынчук

 Запитання:Ваше запитаня 
знайти корень уравнения y=cos(1+sin(x)) на промежутку [1;3]

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 ANSWER ====================================

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication16
{
    class Program
    {
        static double f(double x)
        {
            return Math.Cos(1 + Math.Sin(x));
        }
        static void Main(string[] args)
        {
            double a=1,b=3;
            int rootcount=0;
            double tochnost=0.0001;
            for (double x = a; x <= b; x += tochnost)
            {
                if (Math.Abs(f(x)) <= 0.00004)
                {
                    rootcount++;
                    Console.WriteLine("x = {0}",x);
                }

            }
            if (rootcount == 0) { Console.WriteLine("Nety koreniv"); }
            Console.ReadKey();

        }
    }
}



 END of ANSWER ====================================