7
QuizMultiple Choice
Trigonometric Sum Identities
Question 7 • Precalculus
What is the exact value of cos(195°)?
Answer
A
StartFraction StartRoot 6 EndRoot minus StartRoot 2 EndRoot
B
StartFraction StartRoot 6 EndRoot + StartRoot 2 EndRoot Over 4 EndFraction
C
StartFraction negative StartRoot 6 EndRoot minus StartRoot 2 EndRoot
D
StartFraction negative StartRoot 6 EndRoot + StartRoot 2 EndRoot Over 4 EndFraction