Monomath – CBSE | GSEB | IB | JEE Maths by Ajay Yadav (Math King of Katargam) – 15+ Years Experience. Study Notes, Video Lessons, Formula Sheets & PYQs.
← GSEB Class 11

Relations and Functions

Board: GSEB Class: 11

Chapter Overview

Cartesian products, relations, and functions. Domain, codomain, range. Types: one-to-one, onto, bijective. Real-valued functions: polynomial, rational, modulus, signum. Algebra of functions.

Topics Covered

  • Cartesian Product
  • Relations
  • Domain and Range
  • Function Types
  • Real Functions
  • Function Algebra

Key Formulas

(f+g)(x) = f(x)+g(x)
(fog)(x) = f(g(x))

Real-World Applications

Applications: Physics modeling, economic functions, computer science algorithms.

Study Tips

Tip: Draw graphs for each function type
Tip: Practice GSEB exemplar problems

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