Provide solution for RD Sharma maths class 12 chapter 4 Algebra of Matrices exercise Fill in the blank question 26
Answer:
AB = BA
Hint:
Use the concept of symmetric matrix
Given:
A and B are symmetric metrices.
Solution:
Since A and B are symmetric so,
A = ATB = BTAT
So,
AB = (AB)T = BTAT
From equation (1), (2)
AB = BA