1. Chapter 3 Class 12 Matrices (Term 1)
  2. Concept wise
  3. Symmetric and skew symmetric matrices

Ex 3.3, 7 - Chapter 3 Class 12 Matrices (Term 1)

Last updated at Aug. 16, 2021 by

Ex 3.3, 7 - (i) Show that matrix A is a symmetric matrix - Symmetric and skew symmetric matrices

 

  1. Chapter 3 Class 12 Matrices (Term 1)
  2. Concept wise

    3. Symmetric and skew symmetric matrices

    Proof using property of transpose →

Transcript

Ex 3.3, 7 Show that the matrix A = [■8(1&−1&5@−1&2&1@5&1&3)] is a symmetric matrix A = [■8(1&−1&5@−1&2&1@5&1&3)] A’ = [■8(1&−1&5@−1&2&1@5&1&3)] ∴ A’ = A Hence, A is a symmetric matrix.

Chapter 3 Class 12 Matrices (Term 1)
Concept wise

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.