The characteristic equation of a linear time-invariant (LTI) system is given by

Q. The characteristic equation of a linear time-invariant (LTI) system is given by

∆(𝑠) = 𝑠4 + 3𝑠3 + 3𝑠2 + 𝑠 + 𝑘 = 0.

The system is BIBO stable if

Ans: Option (C)

Solution:

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