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Simplify the Expression to Either 1 or -1 $- \sin ^ { 2 } x - \cos ^ { 2 } x$

Question 36

Question 36

Multiple Choice

Simplify the expression to either 1 or -1.
- $- \sin ^ { 2 } x - \cos ^ { 2 } x$

A) 1
B) $- 1$

Correct Answer:

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