Grade 11 Mathematics | Introduction to Trigonometric Graphs (Sine, Cosine, Tan) | iCampSA

Welcome to iCampSA — where Maths is Made Fun! In this video, we dive deep into Grade 11 Trigonometry, focusing on the fundamental principles of Trigonometric Functions and Graphs. Whether you are learning this for the first time or revising for your exams, this step-by-step lesson will give you a rock-solid foundation! What we cover in this lesson: Introduction to Trig Graphs Core Concepts: Amplitude, Period, Range & Phase Shifts The Sine Graph (y = sin θ) Properties & Steps to Draw The Cosine Graph (y = cos θ) Properties & Characteristics The Tangent Graph (y = tan θ) & Understanding Asymptotes Graph Transformations & Examples (Changes in Amplitude & Period) Negative Graphs & Reflections about the X-Axis Summary & Practice Problems Key Highlights of the lesson: • Amplitude: Maximum height of the graph from its origin/rest position. • Period: The horizontal distance required for one full cycle/repetition. • Sine Graph: Always starts through the origin (0°, 0), has an amplitude of 1, and a period of 360°. • Cosine Graph: Starts at its maximum value (0°, 1), has an amplitude of 1, and a period of 360°. • Tangent Graph: Has no maximum value (amplitude is undefined), has a period of 180°, and features critical asymptotes at 90° and 270°. • Transformations: Step-by-step execution of sketching graphs with shifted values such as y = 3 sin(½x), y = ½ cos(2x), and reflections like y = -sin(3x). If you found this lesson helpful, please give it a thumbs up, leave a comment below with any questions, and SUBSCRIBE to iCampSA for more simplified high school mathematics lessons! 🔔 Turn on notifications so you never miss a lesson! #TrigGraphs #Grade11Maths #iCampSA #Trigonometry #MathsMadeFun #SouthAfricaEducation #CAPSMaths #icampsa