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Trace of $$$\left[\begin{array}{cc}t & - t\\0 & t\end{array}\right]$$$

The calculator will find the trace of the square $$$2$$$x$$$2$$$ matrix $$$\left[\begin{array}{cc}t & - t\\0 & t\end{array}\right]$$$, with steps shown.
A

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Your Input

Find the trace of $$$\left[\begin{array}{cc}t & - t\\0 & t\end{array}\right]$$$.

Solution

The trace of a matrix is the sum of its diagonal elements, so the trace is $$$t + t = 2 t$$$.

Answer

The trace of the matrix equals $$$2 t$$$A.


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