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If $A = |\begin{matrix} 5 & 6 & 3 \\ - 4 & 3 & 2 \\ - 4 & - 7 & 3 \end{matrix}|$ , then cofactors of the elements of 2nd row are

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39, -3,11

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-39,27,11

-39,-3,11

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Correct option is C

C21=(−1)2+1(18+21)=−39 C22=(−1)2+2(15+12)=27 C23=(−1)2+3(−35+24)=11

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If A=563−432−4−73 , then cofactors of the elements of 2nd row are

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If $A = |\begin{matrix} 5 & 6 & 3 \\ - 4 & 3 & 2 \\ - 4 & - 7 & 3 \end{matrix}|$ , then cofactors of the elements of 2nd row are