Flashcards
Trig formulae to remember
Cards in this deck (16)
- 1Triangles for remembering trig ratios
- 2Identities: sin^2 x + cos^2 x = 1Useful for solving equations, parametric equations etc. (can rearrange to substitute in either sinx or cosx)
- 3Identities: sin x/cos xtan x
- 4Functions: sin (-A)- sin A
- 5Functions: cos (-A)cos A
- 6Functions: tan (-A)- tan A
- 7180 degreesPi radians
- 8Reciprocal trig ratios: cosec A1/sin A
- 9Reciprocal trig ratios: sec A1/cos A
- 10Reciprocal trig ratios: cot A1/tan A
(cos A/sin A) - 11Identities: 1 + tan^2 xsec^2 x
- 12Identities: cot^2 x + 1cosec^2 x
- 13Double angle formulae: sin 2x2sinxcosx
- 14Double angle formulae: cos 2xcos^2 x - sin^2 x
or 2cos^2 x - 1
or 1 - 2sin^2 x - 15Double angle formulae: tan 2x2tan x/(1 - tan^2 x)
- 16Volume of revolution formulae
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- A Levels Maths (Pure Maths) Flashcards on Trig formulae to remember, created by lizzie.lambrou on 13/03/2014.
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- lizzie.lambrou
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