If A = [1235]begin{bmatrix}1 & 2\3 & 5end{bmatrix}, then det(2A) = ? 10 15 20 25 ETEA MCQS.COM Vectors & Matrices (Basic)
If u = 2i + j – k, v = i – j + 2k, u × v = ? 3i – 3j + 3k -3i + 3j – 3k i + j – k 4i – j + 2k ETEA MCQS.COM Vectors & Matrices (Basic)
If A = [2134]begin{bmatrix}2 & 1\3 & 4end{bmatrix}, then adj(A) = ? [4−1−32]begin{bmatrix}4 & -1\-3 & 2end{bmatrix} [4132]begin{bmatrix}4 & 1\3 & 2end{bmatrix} [2−1−34]begin{bmatrix}2 & -1\-3 & 4end{bmatrix} [1234]begin{bmatrix}1 & 2\3 & 4end{bmatrix} ETEA MCQS.COM Vectors & Matrices (Basic)
For A = [1002]begin{bmatrix}1 & 0\0 & 2end{bmatrix}, find det(A⁻¹) 0.5 2 1 -0.5 ETEA MCQS.COM Vectors & Matrices (Basic)
