The question asks: without solving, use the differential equation and initial condition to find y'''(0) and give the Taylor Series cubic approximation of y (round coefficients to four decimal places).

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The question asks: without solving, use the differential equation and initial condition to find y'''(0) and give the Taylor Series cubic approximation of y (round coefficients to four decimal places).

### Implicit Derivatives of ODE's

The ordinary differential equation (ODE) given is:

\[ \frac{dy}{dt} = 0.5 \left(1 - \frac{y}{1000}\right) \left(\frac{y}{200} - 1\right), \quad y(0) = 400 \]

This equation describes the rate of change of \( y \) with respect to time \( t \). 

**Explanation:**

- \( \frac{dy}{dt} \) represents the derivative of \( y \) with respect to \( t \), which is the rate at which \( y \) changes over time.
- The term \( 0.5 \left(1 - \frac{y}{1000}\right) \left(\frac{y}{200} - 1\right) \) is a function of \( y \), indicating how the rate of change depends on the current value of \( y \).
- The initial condition \( y(0) = 400 \) specifies that when \( t = 0 \), the value of \( y \) is 400.

This equation is a nonlinear ODE, as the right-hand side is a product of two polynomials in \( y \).

There are no graphs or diagrams in the provided image. If there were, they would be explained in detail to enhance understanding.
Transcribed Image Text:### Implicit Derivatives of ODE's The ordinary differential equation (ODE) given is: \[ \frac{dy}{dt} = 0.5 \left(1 - \frac{y}{1000}\right) \left(\frac{y}{200} - 1\right), \quad y(0) = 400 \] This equation describes the rate of change of \( y \) with respect to time \( t \). **Explanation:** - \( \frac{dy}{dt} \) represents the derivative of \( y \) with respect to \( t \), which is the rate at which \( y \) changes over time. - The term \( 0.5 \left(1 - \frac{y}{1000}\right) \left(\frac{y}{200} - 1\right) \) is a function of \( y \), indicating how the rate of change depends on the current value of \( y \). - The initial condition \( y(0) = 400 \) specifies that when \( t = 0 \), the value of \( y \) is 400. This equation is a nonlinear ODE, as the right-hand side is a product of two polynomials in \( y \). There are no graphs or diagrams in the provided image. If there were, they would be explained in detail to enhance understanding.
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