If \( [x] \) stands for the greatest integer less than or equal to \( x \), then the value of \(...

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If \( [x] \) stands for the greatest integer less than or equal to \( x \), then the value of \( \left|\begin{array}{ccc}{[e]} & {[\pi]} & {\left[\pi^{2}-6\right]} \\ {[\pi]} & {\left[\pi^{2}-6\right]} & {[e]} \\ {\left[\pi^{2}-6\right]} & {[e]} & {[\pi]}\end{array}\right| \) is
(a) -8
(b) 8
(c) 0
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