Identity Matrix and Upper Triangular Matrix

The order of a matrix with 3 rows and 3 columns is 33.

The element located in the 2nd row and 3rd column of matrix A is a23.

A matrix with 3 rows and 2 columns has 6 elements.

<p>A column matrix is a matrix that has only one column, and is of order m 1, where m 1.</p> Signup and view all the answers

<p>A singleton matrix is a real number that can be treated as a matrix of order 11.</p> Signup and view all the answers

<p>A row matrix is a matrix that has only one row, and is of order 1 n, where n 1.</p> Signup and view all the answers

<p>A zero or null matrix is a matrix in which every element is zero.</p> Signup and view all the answers

<p>The identity matrix of order 33 is:$\begin{bmatrix}1 &amp; 0 &amp; 0 \0 &amp; 1 &amp; 0 \0 &amp; 0 &amp; 1\end{bmatrix}$</p> Signup and view all the answers

<p>The property of an identity matrix is that when multiplied with any matrix, it leaves the matrix unchanged.</p> Signup and view all the answers

<p>The order of an identity matrix is nn, where n is a positive integer.</p> Signup and view all the answers