Let , , , which of the following is defined ? (A) Only AB (B) Only AC (C) Only BA (D)…

MATHEMATICS · Subjective · CBSE · Mathematics · Matrices · Matrices

Problem

Let A=[1−2−104−1−321]A = \begin{bmatrix} 1 & -2 & -1 \\ 0 & 4 & -1 \\ -3 & 2 & 1 \end{bmatrix} , B=[−2−5−7]B = \begin{bmatrix} -2 \\ -5 \\ -7 \end{bmatrix} , C=[9 8 7]C = [9 \ 8 \ 7] , which of the following is defined ? (A) Only AB (B) Only AC (C) Only BA (D) All AB, AC and BA

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