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It A is a symmetric matrix and B & C are skew symmetric matrices of same order then 

(1) A13 B26 - B26 A13 is symmetric 

(2) AC A is symmetric 

(3) A13 B26 - B26 A13 is skew symmetric 

(4) AC-A is skew symmetric

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(3) A13 B26 - B26 A13 is skew symmetric 

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