IB Mathematics Analysis and Approaches Topic SL 3.5—unit Circle Definitions of Sin, Cos, Tan. Exact Trig Ratios, Ambiguous Case of Sine Rule (SL/HL) covers syllabus content. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
Practice
What this topic covers
Question Type 1: Determining relationship between trigonometric functions using unit circle
Question Type 2: Given an equation of a line, finding the angle of elevation
Question Type 3: Rearranging equations and simplifying equations into either sin or cos only
Question Type 4: Substituting simple values into equations to find exact answers
Question Type 5: Solving simple expressions for the value of x
Question Type 6: Solving more difficult equations that require rearranging to solving for x
Question Type 7: Determining if the triangles suffer from ambiguous case of sine rule
Question Type 8: Given the triangle suffers from ambiguous case, finding both possible angles