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Verify That Each Equation Is an Identity cos(4θ)=cos4θ6sin2θcos2θ+sin4θ\cos ( 4 \theta ) = \cos ^ { 4 } \theta - 6 \sin ^ { 2 } \theta \cos ^ { 2 } \theta + \sin ^ { 4 } \theta

Question 184

Essay

Verify that each equation is an identity.
- cos(4θ)=cos4θ6sin2θcos2θ+sin4θ\cos ( 4 \theta ) = \cos ^ { 4 } \theta - 6 \sin ^ { 2 } \theta \cos ^ { 2 } \theta + \sin ^ { 4 } \theta

Correct Answer:

verifed

Verified

\[\begin{array} { l }
\cos ( 4 \theta )...

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