37
QuizMultiple Choice
Solving Trigonometric Equations — Cumulative exam
Question 37 • Precalculus
Which expression is equivalent to 4sin2(x) – 8sin2?
Answer
A
4(cos(x) – cos2(x))B
4(–cos(x) – cos2(x))C
4(2 – cos(x) – cos2(x))D
4(2 + cos(x) – cos2(x))