Let, \[{\text{A}} = \left[ {\begin{array}{*{20}{c}}
2&{ - 0.1} \\
0&3
\end{array}} \right]\] and \[{{\text{A}}^{ - 1}} = \left[ {\begin{array}{*{20}{c}}
{\frac{1}{2}}&{\text{a}} \\
0&{\text{b}}
\end{array}} \right].\]
Then (a + b) = ?
A. \[\frac{7}{{20}}\]
B. \[\frac{3}{{20}}\]
C. \[\frac{{19}}{{60}}\]
D. \[\frac{{11}}{{20}}\]
Answer: Option A
This Question Belongs to Engineering Maths >> Linear Algebra
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