Matrix Component (Business Mathematics)

Mathematics
1

Let A is a 2x2 matrix and det det (2A) =12. Then A is …

a. [2 1 1 1]
b. [2 1 -1 1]
c. [4 2 2 2]
d. [4 2 -2 2]
e. [4 -2 -2 2]