Solutions of Question 2 of Exercise 2.1 of Unit 02: Matrices and Determinants. This is unit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Federal Textbook Board, Islamabad, Pakistan.
Identify the following matrix $\quad A=\left[\begin{array}{lll}3 & 6 & 2 \\ 2 & 1 & 9\end{array}\right]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Rectangular matrix
Identify the following matrix $B=\left[\begin{array}{ll}\frac{1}{3} & 1 \\ 2 & 6\end{array}\right]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Square matrix
Identify the following matrix $C=\left[\begin{array}{l}3 \\ 2 \\ 8\end{array}\right]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Column matrix
Identify the following matrix $D=\left[\begin{array}{lll}1 & 6 & 9 \\ 2 & 0 & 1 \\ 3 & 1 & 2\end{array}\right]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Square matrix
Identify the following matrix $E=\left[\begin{array}{lll}2 & 0 & 1\end{array}\right]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Row matrix
Identify the following matrix $F=[16]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Square matrix