How many of the following matrices have an eigen value 1?
\[\left[ {\begin{array}{*{20}{c}}
1&0 \\
0&0
\end{array}} \right],\left[ {\begin{array}{*{20}{c}}
0&1 \\
0&0
\end{array}} \right],\left[ {\begin{array}{*{20}{c}}
1&{ - 1} \\
1&1
\end{array}} \right]{\text{ and }}\left[ {\begin{array}{*{20}{c}}
{ - 1}&0 \\
1&{ - 1}
\end{array}} \right]\]
A. one
B. two
C. three
D. four
Answer: Option A
This Question Belongs to Engineering Maths >> Linear Algebra
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