In the name of ALLAH, the most beneficient, the most merciful

Linear Algebra (MTH501)

Question (select most suitable option)

  If the determinant of the matrix \( A = \begin{bmatrix} 2 & 3 & 4 \\ 1 & 2 & 2 \\ 3 & 4 & 5 \\ \end{bmatrix} \) is -1 and the matrix B is obtained by adding 2 times of the second row in the first row of the matrix A, then which of the following is true for the matrix B?
Its determinant is -1.
Its determinant is 1.
Its determinant can not be evaluated.
The information is not sufficient to calculate the determinant.