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The values of `k` for which the system of equations `kx+y+z=0,x-ky+z=0` and `x+y+z=0` possesses non-trivial solution. AreA. `1,2`B. `-1,1`C. `1,-2`D. `-1,-2` |
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Answer» Correct Answer - B `Delta=0` `implies|{:(k,1,1),(1,-k,1),(1,1,1):}|=0` `impliesk(-k-1)-1(1-1)+1(1+k)=0` `implies-k^(2)-k+1+k=0` `k=+-1` |
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