If the system of equations 2x + 5y + 8z = 0, x + 4y + 7z = 0, 6x + 9y – z = 0 has a non-trivial solution, then is equal to
12
-12
0
None of these
Here
= -12.
Option 1)
12
Option 2)
-12
Option 3)
0
Option 4)
None of these
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