If A is a square matrix (adjA)'

Engineering

Mathematics

Introduction to Matrix

Transpose and Adjoint of a Matrix

Question

If A is a square matrix (adjA)' – (adjA')

2adjA

Unit matrix

Null matrix

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

Given a square matrix A, we need to find (adj A)' - (adj A').

Recall that for any square matrix, (adj A)' = adj(A').

Therefore, the expression becomes: adj(A') - adj(A') = 0.

This is the null matrix, a matrix where every element is zero.

Final answer: Null matrix