Answers Precalculus Trigonometric Difference IdentitiesQuestion 9

9

QuizMultiple Choice

Trigonometric Difference Identities

Question 9 • Precalculus

Which expression is equivalent to ?

Question illustration

Answer

A

Cosine (negative StartFraction pi over 2 EndFraction)

Option A

B

Sine (negative StartFraction pi over 2 EndFraction)

Option B

C

Cosine (StartFraction 2 pi over 3 EndFraction)

Option C

D

Sine (StartFraction 2 pi over 3 EndFraction)

Option D

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