Answers Precalculus Trigonometric Double Angle IdentitiesQuestion 11

11

QuizMultiple Choice

Trigonometric Double Angle Identities

Question 11 • Precalculus

What is the value of 2cos2(75°) – 1?

Answer

A

Negative StartFraction StartRoot 3 EndRoot Over 2 EndFraction

Option A

B

Negative one-half

Option B

C

One-half

Option C

D

StartFraction StartRoot 3 EndRoot Over 2 EndFraction

Option D

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