Question

The breakaway point corresponds to a point in the s-plane where
ha
the root locus becomes unstable
multiple roots of the characteristic equation occur
оооо
the Routh's stability criterion is applicable
the Routh's stability criterion fails​

Answer 1

Answer:

This means that on a root-locus graph, all the poles move towards a zero. Only one pole may move towards one zero, and this means that there must be the same number of poles as zeros.