Advertisements
Advertisements
Question
If A = `[(3, 1),(-1, 2)], B = [(1, 0),(0, 2)]`, find BA.
Sum
Advertisements
Solution
A = `[(3, 1),(-1, 2)], B = [(1, 0),(0, 2)]`
BA = `[(1, 0),(0, 2)] [(3, 1),(-1, 2)]`
= `[(1 xx 3 + 0 xx (-1), 1 xx 1 + 0 xx 2),(0 xx 3 + 2 xx (-1), 0 xx 1 + 2 xx 2)]`
= `[(3, 1),(-2, 4)]`
shaalaa.com
Is there an error in this question or solution?
Chapter 8: Matrices - Exercise 8C [Page 164]
