C3 - Formulae to learn

Tech Wilkinson
Flashcards by Tech Wilkinson, updated more than 1 year ago
Tech Wilkinson
Created by Tech Wilkinson over 6 years ago
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Description

OCR Mathematics Core 3

Resource summary

Question Answer
\(\sec \theta\) \(\frac{1}{\cos \theta}\)
\(\mathrm{cosec} \theta\) \(\frac {1}{\sin \theta}\)
\(\cot \theta\) \(\frac{1}{\tan \theta}\)
\(\sec^2 \theta\) \(1 + tan^2 \theta\)
\(\mathrm{cosec}^2 \theta\) \(1 + \cot^2 \theta\)
\(\sin 2A\) \(2 \sin A \cos A\)
\(\cos 2A\) = \(2 \cos^2 A-1\) \(\cos^2 A - sin^2 A\) = \(1-2 \sin^2 A\)
\(\tan 2A\) \(\frac {2 \tan A}{1 - \tan^2 A}\)
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