Assume that ab is a zero-divisor and that a and b are members of a commutative ring. A or B should be demonstrated to be zero-divisors.
(i)Prove that if
(ii)Prove that the converse of(i) is also true.That is to say, if there exists a constant c such that
To graph: The sketch of the solution set of system of nonlinear inequality
Interraption: To show that the system
A limit cycle is a closed trajectory. Isolated means that neighboring trajectories are not closed.
A limit cycle is said to be unstable or half stable, if all neighboring trajectories approach the lemin cycle.
These systems oscillate even in the absence of external periodic force.