Question 2, Exercise 2.1
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.
Question 1(i)
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
Question 1(ii)
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
Question 1(iii)
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
Question 1(iv)
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
Question 1(v)
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
Question 1(vi)
Identify the following matrix $F=[16]$ as square matrix, rectangular matrix, row matrix or column matrix.
Solution.
Square matrix
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