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.

The Mathematics section of the JEE Main 2026 exam is often the deciding factor in securing a top rank. Many students struggle with the vast syllabus, making it difficult to know where to focus their ...

ISC Class 12 Maths Syllabus 2025-26 provides updated chapters, marking scheme, and assessment details for the board exam scheduled on 9 March 2026. It covers key units like Calculus, Algebra, ...

Define the Standard Model gauge group to be S ( U ( 2) × U ( 3)), the subgroup of SU ( 5) consisting of block diagonal matrices with a 2 × 2 block and then a 3 × 3 block. (This is isomorphic to the ...

As England’s resident doctors prepare to strike, one doctor argues patient duty cannot be separated from the wider fiscal pressures of the NHS.

To be eligible for JEE Advanced 2026, candidates must rank among the top 2.5 lakh students in JEE Main 2026, satisfy the age ...

To be eligible for JEE Advanced 2026, candidates must rank among the top 2.5 lakh students in JEE Main 2026, satisfy the age criteria. Additionally, candidates must have appeared for their Class 12 ...