Answers Precalculus Solving Trigonometric Equations — Cumulative examQuestion 36

36

QuizMultiple Choice

Solving Trigonometric Equations — Cumulative exam

Question 36 • Precalculus

Which expression is equivalent to cos(4x)?

Answer

A

2(2cos2(x) – 1)2 – 1

B

2cos2(x) – 1

C

2cos2(x) – 4

D

4cos2(x)

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