Sandoval Willis
03/26/2023 · High School

State the type of matrix \( P \) and matrix \( Q \). giving a reason for your answer. ( 4 Marks) \[ \begin{array}{rrrrr}6 & 0 & 0 \\ 0 & 4 & 0 \\ 0 & 0 & 1\end{array} \quad \text { and } Q=\begin{array}{lll}5 & 0 & 0 \\ 0 & 5 & 0 \\ 0 & 0 & 5\end{array} \]

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To determine the type of matrix \( P \) and matrix \( Q \), we need to analyze their properties. Matrix \( P \): \[ P = \begin{array}{rrrr}6 & 0 & 0 \\ 0 & 4 & 0 \\ 0 & 0 & 1\end{array} \] Matrix \( Q \): \[ Q = \begin{array}{lll}5 & 0 & 0 \\ 0 & 5 & 0 \\ 0 & 0 & 5\end{array} \] 1. Matrix \( P \): - Matrix \( P \) is a diagonal matrix because all the non-diagonal elements are zero. - The diagonal elements of matrix \( P \) are 6, 4, and 1. - Therefore, matrix \( P \) is a diagonal matrix. 2. Matrix \( Q \): - Matrix \( Q \) is also a diagonal matrix because all the non-diagonal elements are zero. - The diagonal elements of matrix \( Q \) are 5, 5, and 5. - Therefore, matrix \( Q \) is a diagonal matrix. In conclusion: - Matrix \( P \) is a diagonal matrix. - Matrix \( Q \) is a diagonal matrix.

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Matrix \( P \) and matrix \( Q \) are both diagonal matrices.
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