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If A = |(2,3,-1)(4,1,0)(3,3,2)|, find M12 x M21 + C21 x C12 when Mij is called minor and Cij is called co-factors of A.

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If A = |(2,3,-1)(4,1,0)(3,3,2)|, find M12 x M21 + C21 x C12  when Mij is called minor and Cij is called co-factors of A.

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 A = |(2,3,-1)(4,1,0)(3,3,2)|,

 

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