f(t): = _¹{582 + 4) se **S/2 7+( ])u(t-[

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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Find \( f(t) \):

\[
\mathcal{L}^{-1} \left\{ \frac{s e^{- \pi s / 2}}{s^2 + 4} \right\}
\]

\[
f(t) = \underline{\hspace{1cm}} + \left( \underline{\hspace{1cm}} \right) u(t - \underline{\hspace{1cm}})
\]

**Explanation:**

The task involves finding \( f(t) \) by evaluating the inverse Laplace transform of a given expression. The expression inside the inverse Laplace transform involves a shifted and scaled function in \( s \)-domain:

\[
\frac{s e^{- \pi s / 2}}{s^2 + 4}
\]

This usually indicates the concept of damped harmonic motion or similar functions involving exponential and sinusoidal components. The blank spaces in the expression for \( f(t) \) suggest that we are to determine specific components of the function, possibly involving known functions like the sine or cosine, and incorporate them with unit step functions \( u(t - a) \). 

The result will be expressed in the time domain with additional components adjusted using step functions to account for shifts in \( t \).
Transcribed Image Text:Find \( f(t) \): \[ \mathcal{L}^{-1} \left\{ \frac{s e^{- \pi s / 2}}{s^2 + 4} \right\} \] \[ f(t) = \underline{\hspace{1cm}} + \left( \underline{\hspace{1cm}} \right) u(t - \underline{\hspace{1cm}}) \] **Explanation:** The task involves finding \( f(t) \) by evaluating the inverse Laplace transform of a given expression. The expression inside the inverse Laplace transform involves a shifted and scaled function in \( s \)-domain: \[ \frac{s e^{- \pi s / 2}}{s^2 + 4} \] This usually indicates the concept of damped harmonic motion or similar functions involving exponential and sinusoidal components. The blank spaces in the expression for \( f(t) \) suggest that we are to determine specific components of the function, possibly involving known functions like the sine or cosine, and incorporate them with unit step functions \( u(t - a) \). The result will be expressed in the time domain with additional components adjusted using step functions to account for shifts in \( t \).
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