further trigonometry identities
DESCRIPTION
This presentation shows how sum and difference of angles formula are derived. It also features doubled-angled formula and other trigonometry formulas.TRANSCRIPT
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Further Trigonometry IdentitiesMultiple Angles
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Solve the following equations for the angles between 0° and 360° inclusive
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Simplifying trigonometry
as
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taking R positive
Expand it as sum of angles
By association
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where and
is acute
are positive
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Further Trigonometry IdentitiesFACTOR FORMULAE
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Express the following as a product of trigonometrical functions:
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Prove that