Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Determinants

Question:

Which of the following statements are correct ?

(A) $|A'|=|A|$ where A is the transpose of matrix A

(B) If $A=[a_{ij}]_{3×3},$ then $|4A|=64|A|$

(C) $|A|=|adj\, A|^{n-1},$ where n is the order of the matrix

(D) If A is  an invertible matrix of order 2, then $det(A^{-1})$ is equal to $\frac{1}{det(A)}$

Choose the correct answer from the options given below :

Options:

(A), (B), (D) Only

(A), (C) Only

(A), (B), (C) Only

(A), (D) Only

Correct Answer:

(A), (B), (D) Only