Matrices and Determinants from "summary" of NCERT Class 10 Mathematics Solutions by JagranJosh
A matrix is a rectangular arrangement of numbers, symbols, or expressions in rows and columns. The numbers, symbols, or expressions in a matrix are called its elements. The horizontal lines in a matrix are called rows, and the vertical lines are called columns. The number of rows and columns in a matrix is called its order. For example, a matrix with m rows and n columns is said to be an m × n matrix. Matrices are used to represent data in a concise and organized way. They are widely used in various fields such as physics, computer science, economics, and engineering. Matrices allow us to perform operations such as addition, subtraction, multiplication, and division. The operations on matrices follow certain rules and properties, which make them useful for solving complex problems. Determinants are special numbers associated with square matrices. A determinant is a scalar value that can be calculated from the elements of a square matrix. The determinant of a matrix is denoted by |A|, where A is the...
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