Functions | Domain, Range, Inverse, Composite | Complete IGCSE & O Level Math Guide

Ace your IGCSE and O Level Math exams with this full Functions guide! In this video, we cover everything you need to master Functions for your 2025 Cambridge exams, including Domain, Range, Inverse Functions, and Composite Functions — explained in a simple, step-by-step way. This video is perfect for: • Cambridge IGCSE Mathematics (0580) • Cambridge O Level Mathematics (4024) • Other international O Level boards What you’ll learn: • How to find the Domain and Range in functions • How to find Inverse Functions • How to solve Composite Functions (f o g)(x) Whether you’re revising for Paper 2, Paper 4, or just starting Functions, this lesson will boost your confidence! Timestamps: 00:00 - Introduction to Functions for IGCSE/O Level 01:15 - Understanding What a Function Is 12:10 - Domain and Range Basics 40:50 - Inverse Functions Explained 1:00:30 - Composite Function Examples Instagram: https://www.instagram.com/remathable?... Subscribe for clear, exam-focused math videos every week:    / @remathable   #mathtutorial #mathmadeeasy #olevelmath #igcsemaths #igcse2025 #cambridgemath #IGCSE #OLevel #Maths #Functions #DomainAndRange #InverseFunctions #CompositeFunctions #IGCSE2025 #OLevel2025 #Math