Question

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TRIGONOMETRIC IDENTITIES AND EQUATIONS
Max
Half-angle identities: Problem type 1
Español
Use a half-angle formula to find the exact value of cos
8
5п
COS
8
?
Aa

Image Transcription

TRIGONOMETRIC IDENTITIES AND EQUATIONS Max Half-angle identities: Problem type 1 Español Use a half-angle formula to find the exact value of cos 8 5п COS 8 ? Aa

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Trigonometric Ratios