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[" 28.If "A" is a skew-symmetric matrix ...

[" 28.If "A" is a skew-symmetric matrix of order "n" ,and "],[C" is a column matrix of order "n times1" ,then "c'AC],[" is "" [amu "2005" ] "],[" (a) "A" ldentity matrix of order "n],[" (b) "A" unit matrix of order one "],[" (c) A zero matrix of order one "],[" (d) None of these "]

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