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Algebra in code and assundry CHAOS

All righty then..... In this lesson we are going to getting down to some hard core numbers. You are given a number of float's and value in them. We are then going to take those Float's and make a program that derives a specific value from those float's making the computer run it through a computation that is provided below. 


​


Here is the situation

​Take a look at the code below: it reads a float value, puts it into a variable named x and prints the value of a variable named y.
Your task is to complete the code in order to evaluate the following expression:



​
Picture

Hints

​
We expect the result to be assigned to y.
Note: we've prepared a variable containing the value of π. Use it.
Be careful! Watch the operators and keep their priorities in mind. Remember that classical algebraic notation likes to omit the multiplication operator – you need to use it explicitly.
Don't hesitate to use as many parentheses as you need. Keep your code clean and readable – surround the operators with spaces. Use additional variables to shorten the expression.
Hint: multiply x by x to get x squared.
Test your code by using the data we've provided – don't be discouraged by any initial failures. Be persistent and inquisitive. Good luck!

The Code

using System;

namespace Parenthesis
{
    class Program
    {
        static void Main()
        {
            {
                float pi = 3.14159265359f;
                double y;
                Console.Write("Enter value for x: ");
                string inputNum = Console.ReadLine();
                double x = Convert.ToDouble(inputNum);

                // put your code here
   
                Console.WriteLine("After we ran you number through the formula your result is " + y);
            }
             
        }
    }
}​​

The results that we are after

Example input 1 Example output y = 0.0949234 
Example input -1.5 Example output y = 0.0890702
Example input 12.345 Example output y = 0.101057
 

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