sivaram

1. A linear system represented by augmented matrix 1 5 -4 7 has A) no solutions B) exactly one solution C) exactly two solutions D) exactly three solutions E) indefinitely many solutions

1 1 5. If the rank A = 4 and rank [Ab] = 5, which one of the following describes the solution mark to the system of linear equations Ax=b? A: no solution B: exactly one solution C: exactly one parameter in the solution D: exactly four parameters in the solution E: exactly 5 parameters in the solution

1 mark 17. The coefficient matrix of a homogeneous system of 10 linear equations in 15 unknowns has rank 4. How many parameters are there in the solution to the system? A: 4 B: 5 C: 6 D: 10 E: 11