Final answer:
The student's question involves finding the inverse Laplace transform of a complex function with multiple terms. The correct approach includes decomposing the function into simpler fractions, using standard pairs, and possibly completing the square for quadratic terms.
Step-by-step explanation:
The subject of this question is the inverse Laplace transform of a given function Y(s) = A/s + Bs + C/s² + 2s + 5. To find the inverse Laplace transform, we need to decompose the function into partial fractions (if required) and use the standard Laplace transform pairs and properties to revert each term back into the time domain.
For complex expressions like a quadratic denominator, the inverse Laplace transform would use other strategies such as completing the square or using the convolution theorem, depending on the nature of the terms involved. The provided information does not directly relate to the process of finding inverse Laplace transforms but seems like it belongs to physics or engineering context, discussing transmission coefficients and attenuation of waves or signals, whereas the student's question is focused on a mathematical procedure.