Solution: det (A) = −5, and for n×n matrix adj (A) has determinant (det A)^ (n−1). Here n = 3, so det (B) = (−5)^ (2) = 25.
Matrices and Determinants are the most of the easiest chapter of entrance examinations, but at the same time they plays an important role in JEE Main and JEE Advanced. About 2-3 questions are being ...
JEE Main: The JEE Main 2025 Maths syllabus provides a detailed outline of topics to prepare for the exam. Aspirants can access the JEE Main 2025 Maths Syllabus PDF Download on the official website, ...
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