JEE Main Mathematics

Matrices and Determinants

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JEE Main Mathematics

Matrices and Determinants

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Types of matrices and their algebra, determinants of order two and three, the adjoint and inverse, and solving linear equations in two or three variables.

Key formula

A^{-1} = \frac{\operatorname{adj} A}{|A|}, \quad |AB| = |A|\,|B|

What this unit covers

Matrices, algebra of matrices, types of matrices
Determinants and matrices of order two and three, evaluation of determinants
Area of triangles using determinants
Adjoint and inverse of a square matrix
Test of consistency and solution of simultaneous linear equations in two or three variables using matrices

Matrices and Determinants

What this unit covers

Other units in JEE Main Mathematics