IB Mathematics Analysis and Approaches Topic SL 3.6—pythagorean Identity, Double Angles (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.
Question Type 1: Rewriting values of sin and cos using the golden rule
Question Type 2: Simple proofs with the golden rule
Question Type 3: Rewriting trigonometric equations using the double angle identities and golden rule
Question Type 4: Finding one trigonometric value given another without finding angle