Question

please answer my question​

Answer 1

Answer:

Your Option Is Wrong

Step-by-step explanation:

This the solution

Answer 2

Answer:

The correct option will be -9

Step-by-step explanation:

Suppose we are given a square matrix A with four elements: a, b, c, and d.

Matrix A is a 2x2 matrix with elements a and b on the first row, and elements c and d on the second row. We can write this is math format as

A = [a b]

[ c d]

The determinant of matrix X is equal to the difference of the product of elements a and b, and the product of elements b and c. In short, this can be written as det X = a*d - b*c.

Here in this problem using the above formula

detA=-3

det B =-6

now A+B = -9