Trigonometry - A-Level-Year 12

Dive into a comprehensive A-level/year 12 trigonometry course covering essential concepts and advanced topics. Begin with a geometric understanding of trigonometric functions, including the proof of tan ≡ sin/cos. Explore trigonometric identities, starting with an introduction and progressing to secant, cosecant, and cotangent. Master sum and difference formulas with detailed derivations, followed by double angle formulas. Gain insight into the relationship between trigonometric functions and the unit circle. Conclude by learning techniques for solving trigonometric equations, preparing you for A-level Mathematics examinations and future mathematical studies.

A Geometric Understanding of the Trigonometric Functions (and proof of tan ≡ sin/cos).
Intro to Trigonometric Identities - part 1.
Secant, Cosecant and Cotangent - (2 of 4: Trigonometric Identities).
The Sum and Difference Formulas - derivations (3 of 4: Trigonometric Identities) (A level).
The Double Angle Formulas - (4 of 4: Trigonometric Identities).
The Trigonometric Functions and the Unit Circle.
Solving Trigonometric Equations | A-level Mathematics.