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Use an Identity to Write the Expression as a Single $1 - 2 \sin ^ { 2 } x + \sin ^ { 4 } x$

Question 258

Question 258

Multiple Choice

Use an identity to write the expression as a single trigonometric function or as a single number.
- $1 - 2 \sin ^ { 2 } x + \sin ^ { 4 } x$

A) $\sin ^ { 2 } x$
B) $\cos ^ { 4 } x$
C) $\left( 1 - \sin ^ { 2 } x \right)$
D) $\left( 1 + \tan ^ { 2 } x \right)$

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