Determinant problem, matrices!! wee! Hello everyone... I got part a, and b, and i'm stuck on c... Suppose that a 4 x 4 matrix A with rows v_1, v_2, v_3, and v_4 has determinant det A = -6. Find the following determinants determinants: det[v_1 v_2 v_3 v_4 + 7*v_2]^T = ? I made it Transposed so its more readable...really it is just determinant of v_1 v_2 v_3 v_4 + 7*v_2 I tried 7*-6 = -42 which was wrong, because if u multiply a column by a constant, it just mutlipies the matrix by that constant, but i don't know what happens if u multip[ly a constant to a a row, and then add it to another row.. Any ideas? If ur confused on what i'm talking about, here is an answer to part a: 5*v_1 v_2 v_3 v_4 det of that matrix is: 5*-6 = -30; and part b: v_4 v_3 v_2 v_1 det of that matrix is 6, because if u swap rows, it will change the sign of the detemrinant.