If \[A=\left( \begin{matrix} i & 1 \\ 0 & i \\ \end{matrix} \right)\], then \[{{A}^{4}}\]equals [AMU 1999]

\[\left( \begin{matrix} 1 & 4 \\ 0 & 1 \\ \end{matrix} \right)\]

\[\left( \begin{matrix} 1 & -4i \\ 0 & 1 \\ \end{matrix} \right)\]

\[\left( \begin{matrix} -1 & -4i \\ 0 & -1 \\ \end{matrix} \right)\]

\[\left( \begin{matrix} -i & 4 \\ 0 & i \\ \end{matrix} \right)\]

If \[A=\left( \begin{matrix} i & 1 \\ 0 & i \\ \end{matr

1.	If \[A=\left( \begin{matrix} i & 1 \\ 0 & i \\ \end{matrix} \right)\], then \[{{A}^{4}}\]equals [AMU 1999]
A.	\[\left( \begin{matrix} 1 & -4i \\ 0 & 1 \\ \end{matrix} \right)\]
B.	\[\left( \begin{matrix} -1 & -4i \\ 0 & -1 \\ \end{matrix} \right)\]
C.	\[\left( \begin{matrix} -i & 4 \\ 0 & i \\ \end{matrix} \right)\]
D.	\[\left( \begin{matrix} 1 & 4 \\ 0 & 1 \\ \end{matrix} \right)\]
Answer» D. \[\left( \begin{matrix} 1 & 4 \\ 0 & 1 \\ \end{matrix} \right)\]

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If \[A=\left( \begin{matrix} i & 1 \\ 0 & i \\ \end{matrix} \right)\], then \[{{A}^{4}}\]equals [AMU 1999]

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