Functions – L1 | What is a Function? | JEE Main & Advanced

Welcome to the Functions Series for JEE Mathematics. In this lecture, we start one of the most important chapters for JEE — Functions. We begin with the fundamental concept: What is a Function? Understanding this concept clearly is extremely important, as it forms the base for many advanced topics in mathematics. In this lecture we cover: • What is a relation? • Definition of a function • Difference between relation and function • Domain, Codomain and Range This lecture will help you build a strong foundation for the entire Functions chapter, which is heavily used in algebra, calculus, and coordinate geometry. 📚 Lecture Notes (PDF): Link: https://drive.google.com/file/d/1sASGxfjtRFEjFYWI2pMt3rTvTeCrt-d_/view?usp=sharing 📷 Follow on Instagram: Link: https://www.instagram.com/maths.made.easy?igsh=MWVzYWhzYnRndXc0Mw== 📌 Functions Playlist (Complete Series) 🔗 Link: https://www.youtube.com/playlist?list=PLbQhdvLDxht8OZBNvElk8eVGLkIm4jcHu 🎯 This lecture is useful for: ✔️ JEE Main & Advanced Aspirants ✔️ Class 11 & 12 Students ✔️ Beginners starting Functions 👍 If this helped you, don’t forget to Like | Share | Subscribe for more JEE Maths content 🏷️ Hashtags #JEE #Functions #JEEMaths #JEE2026 #JEEPreparation #MathsForJEE #RelationsAndFunctions #Class11Maths