Question

A = [2, 3] [5, 7] , B=[ matrix -2&3\ -1&2 ]then A-B=?​

Answer 1

Answer:

As we know

∣KA∣=K

n

∣A∣

where n is the order of the matrix.

∴∣3AB∣=3

3

∣A∣∣B∣

(∵ order given is 3)

∴∣3AB∣=3

3

×∣A∣∣B∣

=27×5×3

=27×15

=405