# MTH105 Questions and Solutions : Let $A=\begin{bmatrix}x&2&b\\2&3&4\\b&4&y\end{bmatrix}$, then A is

Let $A=\begin{bmatrix}x&2&b\\2&3&4\\b&4&y\end{bmatrix}$, then A is
a) upper triangular matrix
b) Symmetric matric
c) Transpose of A
d) diagonal matrix

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