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If Δ = [(a11, a12, a13),(a21, a22, a23),(a31, a32, a33)] and Aij is the co-factor of aij then which is the following value of Δ?(A) a11A11 – a21A21 + a31A31 (B) a11A12 + a21A22 + a31A32(C) a11A11 + a21A21 + a31A31 (D) A11 + A12 + A13 |
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Answer» (C) a11A11 + a21A21 + a31A31 |
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