5
QuizMultiple Choice
Trigonometric Difference Identities
Question 5 • Precalculus
What is the value of cos(15°)?
Answer
A
StartFraction StartRoot 6 EndRoot minus StartRoot 2 EndRoot Over 2 EndFraction
B
StartFraction StartRoot 6 EndRoot minus StartRoot 2 EndRoot Over 4 EndFraction
C
StartFraction StartRoot 6 EndRoot + StartRoot 2 EndRoot Over 4 EndFraction
D
StartFraction StartRoot 6 EndRoot + StartRoot 2 EndRoot Over 2 EndFraction