X-ENS Maths B 2025: Mastering Polynomials, Dot Products & Lagrange Interpolation (Questions 7a & 7b) ❄️

Explore detailed solutions to X-ENS Maths B 2025 questions on polynomials, scalar products, and Lagrange polynomials, perfect for MP/MPIP students preparing for the concours. Boost your understanding and confidence! #spe #concoursprepa #xens #polynomials