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Which of the Following Expressions Is Equivalent to 3 Sin²

Question 14

Multiple Choice

Which of the following expressions is equivalent to 3 sin² α - 3 sin⁴ α?

A) 3 cos⁴ α + cos² α
B) -cos² α - 3 cos⁴ α)
C) 3 (cos² α + cos⁴ α)
D) 3 (cos² α - cos⁴ α)
E) -3 (cos² α - cos⁴ α)

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