Trig Cheat Sheet: Sin to Cot

Whether you're preparing for IB DP exams or building a strong math foundation, this focused trigonometry study guide covers the six core ratios — sin, cos, tan, csc, sec, cot — and shows how to use them in proofs, graphs, and real problems. Inside you'll find:

• Quick formula sheet: definitions, reciprocal relationships, Pythagorean and co-function identities.
• Visual tools: unit circle, right-triangle diagrams, and graphs of sin, cos, tan and their reciprocals.
• Problem types & tips: solving trig equations, inverse functions, triangle solving (SAS/ASA/ASA), and IB exam strategies.
• Applications & extensions: wave motion, circular motion, vectors, and links to calculus for HL students.

Clear worked examples, exam-style practice questions, and memory-check tips help you move from memorising to understanding — step by step.