CBSE Class 12 Half Yearly Sample Papers 2025: For the academic year 2025–2026, the Central Board of Secondary Education (CBSE) half yearly all subject sample papers, solutions and marking schemes from ...

(A) x= 4t + 3, y = −3t + 1, z = 7t +2 10. Four friends Abhay, Bina, Chhaya and Devesh were asked to simplify 4 AB + 3(AB + BA) - 4 BA, where A and B are both matrices of order 2x2. 11. A cylindrical ...