Question

pls give me answer of this question​

Answer 1

Answer:

$\huge{\boxed{\rm{\red{Determinant=1}}}}$

Answer 2

Answer:

-1 is right answer

Step-by-step explanation:

| 5 3 |

| 5 3 |l -7 -4 |

| 5 3 |l -7 -4 |=5×(-4) + 3×(-7)

| 5 3 |l -7 -4 |=5×(-4) + 3×(-7)=-20 + -21

| 5 3 |l -7 -4 |=5×(-4) + 3×(-7)=-20 + -21= -1