Question

OD
frienda
likes monies?
Criset) his grandmother
Why you
My friend
every day
Sheela
(pratich) badminton for
three hours.
This statue
(lying here
ages.
(talk) on the phone for
Parul
almost one hours.
Cring) when the
blone​

Answer 1

Answer:

We know that

∣AB∣=∣A∣∣B∣

Also for a square matrix of order 3

∣KA∣=K

3

∣A∣because each element of the matrix A is multiplied by k and hence in this case we will have k

3

common.

∴∣3AB∣=3

3

∣A∣∣B∣=

=27(−1)(3)=−81