EC > GATE 2022 > Stability Analysis
Consider an even polynomial p(s) given by
p(s) = s4 + 5s2 + 4 + K,
where K is an unknown real parameter. The complete range of K for which p(s) has all its roots on the imaginary axis is ________.
p(s) = s4 + 5s2 + 4 + K,
where K is an unknown real parameter. The complete range of K for which p(s) has all its roots on the imaginary axis is ________.
Correct : a
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