Question

. The real value of 'a' for which the equations
ax+y+z =0, -X+ay+z=0, -X-y+az = 0 have non-
zero solution is
1) 1 2) 0 3) -1 4) all the above​

Answer 1

Answer:

The answer is all the above

I am not sure about the answer but I think it may help you.