If \[A=\left[ \begin{matrix} \alpha & 0 \\ 1 & 1 \\ \end{matrix} \right]\] and \[B=\left[ \begin{matrix} 9 & a \\ b & c \\ \end{matrix} \right]\] and \[{{A}^{2}}=B\], then the value of a + b + c is

If \[A=\left[ \begin{matrix} \alpha & 0 \\ 1 & 1 \\ \e

1.	If \[A=\left[ \begin{matrix} \alpha & 0 \\ 1 & 1 \\ \end{matrix} \right]\] and \[B=\left[ \begin{matrix} 9 & a \\ b & c \\ \end{matrix} \right]\] and \[{{A}^{2}}=B\], then the value of a + b + c is
A.	1 or -1
B.	5 or -1
C.	5 or 1
D.	no real values
Answer» C. 5 or 1

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If \[A=\left[ \begin{matrix} \alpha & 0 \\ 1 & 1 \\ \end{matrix} \right]\] and \[B=\left[ \begin{matrix} 9 & a \\ b & c \\ \end{matrix} \right]\] and \[{{A}^{2}}=B\], then the value of a + b + c is

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