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Example 2 - Chapter 4 Class 12 Determinants
Last updated at May 29, 2023 by Teachoo
Finding determinant of a 2x2 matrix
What is determinant?
Finding Determinant
Important things to note in Determinants
Example 1
Question 16 (MCQ) Deleted for CBSE Board 2024 Exams
Ex 4.1,1
Ex 4.1, 2 (i)
Ex 4.1, 3 Important
Example 2 You are here
Ex 4.1, 8 (MCQ)
Example 5 Important
Ex 4.1, 7 (i) Important
What is the difference between Matrix & Determinant?
Chapter 4 Class 12 Determinants
Concept wise
-
Finding determinant of a 2x2 matrix
- Evalute determinant of a 3x3 matrix
- Area of triangle
- Equation of line using determinant
- Finding Minors and cofactors
- Evaluating determinant using minor and co-factor
- Find adjoint of a matrix
- Finding Inverse of a matrix
- Inverse of two matrices and verifying properties
- Finding inverse when Equation of matrice given
- Checking consistency of equations
- Find solution of equations- Equations given
- Find solution of equations- Statement given
- Verifying properties of a determinant
- Two rows or columns same
- Whole row/column zero
- Whole row/column one
- Making whole row/column one and simplifying
- Proving Determinant 1 = Determinant 2
- Solving by simplifying det.
- Using Property 5 (Determinant as sum of two or more determinants)
Transcript
Example 2 - Chapter 4 Class 12 Determinants - NCERT Book Evaluate |x x+1 x-1 x| |x x + 1 x - 1 x| = x(x) - (x-1) (x+1) = x^2 – (x^2 - 1^2) = x^2 - x^2 + 1 = 1
