Solve:

Solution:

As per the given question,

 is a symmetric matrix.

We know that \[A\text{ }=\text{ }{{\left[ {{a}_{ij}} \right]}_{m\text{ }\times \text{ }n~}}\] is a symmetric matrix if \[{{a}_{ij~}}=\text{ }{{a}_{ji}}\]

So,

Hence, \[x\text{ }=\text{ }4,\text{ }y\text{ }=\text{ }2,\text{ }t\text{ }=\text{ }-3\text{ }and\text{ }z\] can have any value.