Answer:
1,3 that is option B is correct.
Step-by-step explanation:
The entries pattern in the determinant is
The coefficient of each variable and constant on right hand side of equation first will form the first row.
Similarly, the coefficient of each variable and constant on right hand side of equation will form the second row.
Here, in first row we will have 2,-1
And in second row we will have 1,3
Hence, Option B is correct.
