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The greatest value of c in R for which t...

The greatest value of `c in R` for which the system of linear equations x-cy-cz = 0, cx -y + cz =0, cx + cy-z =0 has a non-trivial solution, is

A

`-1`

B

`1//2`

C

2

D

0

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The correct Answer is:
B
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