The exchange rate of the U.S. Dollar with respect to the TL is modeled by a differential equation as shown below. Here, the variable "x" is a combination of market parameters, and "y" denotes the...

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Extracted text: The exchange rate of the U.S. Dollar with respect to the TL is modeled by a differential equation as shown below. Here, the variable "x" is a combination of market parameters, and "y" denotes the exchange rate. dy = x + y – xy dx The above formula is valid with initial condition of y(x = 1.8) = 18.10 TL/USD. Evaluate the exchange rate at z = 2.4 by using Euler's Method with a 0.2 step value.