Question

Please construct matrix/arrays like these:----------

I do not need codes.....just construct it and do not explain anything about it.

no explanation needed.....​

Answer 1

Okay buddy, I get it that you do not need any explanation!

This is the matrix you want:-

$\documentclass{article} </p><p>\usepackage{amsmath} </p><p>\begin{document} </p><p>\( A = \begin{Bmatrix} </p><p>a_{11} & a_{12}\\ </p><p>a_{21} & a_{22} </p><p>\end{Bmatrix} \) </p><p>\end{document}$

It can also be constructed like this:-

1) $\documentclass{article} </p><p>\usepackage{amsmath} </p><p>\begin{document} </p><p>\( A = \begin{Vmatrix} </p><p>a_{11} & a_{12}\\ </p><p>a_{21} & a_{22} </p><p>\end{Vmatrix} \) </p><p>\end{document}$

2)$\documentclass{article} </p><p>\begin{document} </p><p>\( A = \left( </p><p>\begin{array}{cc} </p><p>a_{11} & a_{12}\\ </p><p>a_{21} & a_{22} </p><p>\end{array} </p><p>\right) \) </p><p>\end{document}$