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Convert the Expression cos4bsin4b\cos ^ { 4 } b - \sin ^ { 4 } b

Question 102

Multiple Choice

Convert the expression. cos4bsin4b\cos ^ { 4 } b - \sin ^ { 4 } b


A) 2 cos b
B) cos 2b
C) cos b
D) 2 cos 2b
E) 4 cos b

Correct Answer:

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