This site uses cookie tracking technologies. Learn more in our Cookie Policy.
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