GATE2012-1

Consider the following set of linear algebraic equations

x${_1}$ + 2x${_2}$ + 3x${_3}$ = 2

x${_2}$ + x${_3}$ = -1

2x${_2}$ + 2x${_3}$ = 0

The system has

1. a unique solution
2. no solution
3. an infinite number of solutions
4. only the trivial solution
in Others
edited