The direct method of Liapunov is :
A. Concept of energy
B. Relation of stored energy
C. Using the equation of the autonomous systems
D. All of the mentioned
Answer:D
The direct method of Liapunov is :
A. Concept of energy B. Relation of stored energy C. Using the equation of the autonomous systems D. All of the mentioned
Explanation: Liapunov has two methods as direct and indirect and the direct method of Liapunov is using concept of energy, relation of stored energy and using the equation of the autonomous systems.