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Fractions and percentages

Bob Read

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Double Angle Formulas

Description

Maths Flashcards on Double Angle Formulas, created by anthonyjwheeler on 28/04/2013.

Flashcards by anthonyjwheeler, updated more than 1 year ago

	Created by anthonyjwheeler about 12 years ago

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Resource summary

Question	Answer
Sin(2x)=	2SinxCosx
Tan(2x)=	2Tanx/1-Tan²x
Cos(2x)= In terms of Cosx and Sinx	Cos²x-Sin²x
Cos(2x)= In terms of Cosx	2Cos²x-1
Cos(2x) In terms of Sinx	1-2Sin²x

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