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OCR · A-Level Mathematics

Trigonometry

10Topics
5.7hStudy time

In this section

10 topics
01

Trigonometric Ratios

Understanding sine, cosine, and tangent ratios.

Core45 min
02

Radian Measure

Define a radian and convert between degrees and radians

Core26 min
03

Trigonometric Identities

Working with trigonometric identities and equations.

Stretch45 min
04

Secant, Cosecant and Cotangent

Define sec, cosec and cot

Core30 min
05

Inverse Trigonometric Functions

Understand why the domains are restricted

Stretch30 min
06

Small Angle Approximations

State the small angle approximations

Stretch30 min
07

Addition and Double-Angle Formulae

State and use the addition formulae for $\sin$, $\cos$ and $\tan$

Stretch32 min
08

Simplifying a cos x ± b sin x

Write a sin x ± b cos x as R sin(x ± α)

Stretch30 min
09

Trigonometric Equations

Solving trigonometric equations.

Stretch45 min
10

Modelling with Trigonometric Functions

Interpret trig models in context

Stretch30 min

Work through each topic to complete the section.

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