Solve the following systems of homogeneous linear equations by matrix method:
2x + 3y – z = 0
x – y – 2z = 0
3x + y + 3z = 0
The system can be written as
A X = 0
Now, |A| = 2(– 3 + 2) – 3(3 + 6) – 1(1 + 3) = 0
|A| = – 2 – 27 – 4
|A| = – 33
Hence, the given system has only trivial solution given by x = y = z = 0