Convert the expression. $$\cos ^ { 4 } b - \sin ^ { 4 } b$$
A)2 cos b
B)cos 2b
C)cos b
D)2 cos 2b
E)4 cos b

Name: Convert the expression. \[\cos ^ { 4 } b - \sin ^ { 4 } b\] A)2 cos b B)cos 2b C)cos b D)2 cos 2b E)4 cos b
Brand: Quizplus
Rating: 4.9 (26 reviews)

Question

Convert the expression.​ $$\cos ^ { 4 } b - \sin ^ { 4 } b$$ ​
A)2 cos b
B)​cos 2b
C)​​cos b
D)2 ​cos 2b
E)​4 cos b

Quizplus · Accepted Answer

The Answer of Convert the expression.​ $$\cos ^ { 4 } b - \sin ^ { 4 } b$$ ​
A)2 cos b
B)​cos 2b
C)​​cos b
D)2 ​cos 2b
E)​4 cos b

Convert the Expression cos⁡4b−sin⁡4b\cos ^ { 4 } b - \sin ^ { 4 } bcos4b−sin4b

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