Multiple Choice
Evaluate the following expression.
Cos2 β - sin2 β
A) 1 + 2 sin2 β
B) 1 + 2 cos2 β
C) 2 cos2 β - 1
D) 2 sin2 β - 1
E) 1 - 2 cos2 β
Correct Answer:
Verified
Correct Answer:
Verified
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