Which of the Following Expressions Is Equivalent to 2 -

question 15

Multiple Choice

Which of the following expressions is equivalent to 2 - 4 cos²x + 4 cos⁴x? ​

• A)2 sin²x + 2 cos²x
• B)2 sin⁴x - 2 cos²x
• C)2 sin2x + 2 cos⁴x
• D)2 sin⁴x + 2 cos⁴x
• E)2 sin⁴x - 2 cos⁴x

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