1.

If \(B = \left[ {\begin{array}{*{20}{c}} 3&2&0\\ 2&4&0\\ 1&1&0 \end{array}} \right]\), then what is adjoint of B equal to?

A. \(\left[ {\begin{array}{*{20}{c}} 0&0&0\\ 0&0&0\\ { - 2}&{ - 1}&8 \end{array}} \right]\)
B. \(\left[ {\begin{array}{*{20}{c}} 0&0&{ - 2}\\ 0&0&{ - 1}\\ 0&0&8 \end{array}} \right]\)
C. \(\left[ {\begin{array}{*{20}{c}} 0&0&2\\ 0&0&1\\ 0&0&0 \end{array}} \right]\)
D. It does not exist
Answer» B. \(\left[ {\begin{array}{*{20}{c}} 0&0&{ - 2}\\ 0&0&{ - 1}\\ 0&0&8 \end{array}} \right]\)


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