NCERT Solutions for CBSE Class 12 Mathematics ‒ Chapter 4: Determinant (Part VIII)
NCERT Solutions for CBSE Class 12 Maths Chapter 4 - Determinant (Exercise 4.5) are available here. In this article, you will get solutions for Exercise 4.5 from question number 12 to question number 18. In these questions, you have to find the inverse of the matrices (if exists). These questions are important for CBSE Class 12 board exams. These questions can be also asked in MCQ (multiple choice questions) format.
NCERT Solutions for CBSE Class 12th Maths, Chapter 4: Determinant (Exercise 4.5) from question number 12 to 16 are given below:
Let A be a non-singular square matrix of order 3 × 3. Then |adj A| is equal to
(D) 3 |A|
If A is an invertible matrix of order 2, then det (A‒1) is equal to
(A) det (A)
(B) 1/[det (A)]