In this video we discuss about Routh's stability criterion's case 1, where there are no zeros in the Routh's Array, How we find if the system is stable, unstable or marginally stable. There are 3 cases in Routh's stability criterion, the remaining 2 cases will be discussed in the upcoming video lectures.
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https://www.youtube.com/watch?v=Kl_sG9xyx2Q