FrenchCreekFreddie FrenchCreekFreddie

21-02-2024
Mathematics

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Which statement illustrates why cosine is an even function?

Cosine (StartFraction pi Over 4 EndFraction) = negative cosine (StartFraction 5 pi Over 4 EndFraction)
Cosine (StartFraction pi Over 4 EndFraction) = negative cosine (StartFraction 4 pi Over 4 EndFraction)
Cosine (negative StartFraction pi Over 4 EndFraction) = cosine (StartFraction 4 pi Over 4 EndFraction)
Cosine (StartFraction negative 7 pi Over 6 EndFraction) = cosine (StartFraction 5 pi Over 4 EndFraction)

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djp6182583 djp6182583

21-02-2024

Answer:

Step-by-step explanation:

A fraction is even if f(-x) = f(x)

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