Learn Chapter 4 Determinants of Class 12 free with solutions of all NCERT Questions for CBSE Maths

We will learn

- What a determinant is, and its
**difference from matrix** - Finding determinant for
**2 x 2 and 3 x 3**matrix - Finding
**Area of Triangle**using Determinant - Finding
**Equation of line**using Determinants (We use Area of Triangle formula) - Finding
**Minors**and**Cofactors**of Determinant - Finding Determinant using Minors and Cofactors
- Finding
**adjoint**of a matrix - Finding
**Inverse of a matrix**using Determinants - Then, we verify different
**properties of inverse**and solve some questions

(Like A adj A = |A| I, (AB)^{-1}= A^{-1}B^{-1 }, [adj A]^{-1}= adj A^{-1}) - Suppose
**equation of matrix is given**, like A^{2}– 4A + I = O, we need to find A^{-1}using this equation. (Here we will use property AA^{-1}= I) - Finding
**determinants without expanding** **Properties**of determinants- Finding Adjoint and
**Inverse**of Matrices **Solving linear equations**using determinants like x + 2y + 3z = 0, -49x + 27y + 12z = 0