Question

what is the value of determinet 53/-7-4​

Answer 1

Answer:

∣A∣=

∣

∣

∣

∣

∣

∣

(

a

11

a

21

a

12

a

22

)

∣

∣

∣

∣

∣

∣

=a

11

a

22

−a

21

a

12

∣

∣

∣

∣

∣

∣

5

−7

−3

4

−

∣

∣

∣

∣

∣

∣

=(5∗−4)−(−7∗−3)=−20−14=−34