The value of x for which the matrix |(-x...

The value of x for which the matrix `|(-x,x,2),(2,x,-x),(x,-2,-x)|` will be non-singular, are

A

`-2le x le2`

B

for all x other than 2 and -2

C

`xge2`

D

`xle-2`0

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The correct Answer is:

B

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