Trigonometric identities

Last updated: 15/11/2023
Trigonometric identities
Main Subject
Key stage
Category
Maths: A-level pure maths resources
Resource type
Student activity

A presentation using basic trigonometry and Pythagoras' theorem to introduce the following simple trig identities to A level students.

tan x ≡ sin x / cos x

sin² x + cos² x ≡ 1

 

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