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Using the cosine sum identity, Cosine (x + StartFraction 3 pi Over 2 EndFraction) = cosine (x) cosine (StartFraction 3 pi Over 2 EndFraction) minus sine (x) sine (StartFraction 3 pi Over 2 EndFraction)
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Using the cosine sum identity, Cosine (x + StartFraction 3 pi Over 2 EndFraction) = cosine (x) cosine (StartFraction 3 pi Over 2 EndFraction) minus sine (x) sine (StartFraction 3 pi Over 2 EndFraction)

Which of the following is equivalent to Cosine (x + StartFraction 3 pi Over 2 EndFraction)?

User Matzone
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2 Answers

8 votes

Answer:

A

Step-by-step explanation:

User Coudy
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3.7k points
7 votes

Answer: A. Sin(x)

Step-by-step explanation:

Just did it and got it correct. Yw:)

User Erik Johnson
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3.4k points
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