9000019906

Level: 
Project ID: 
9000019906
Accepted: 
1
Clonable: 
0
Easy: 
0
Consider a linear system of four equations with four unknowns. The rank of the coefficient matrix A is rank(A)=3. The rank of the augmented matrix A is rank(A)=4. Identify a true statement on this system.
The system does not have any solution.
The system has infinitely many solutions.
The system has a unique solution.
It is not possible to draw any conclusion from this information.