Simplify the Expression to Either 1 or -1 $$\cos \left( \frac { \pi } { 2 } - x \right) \csc ( - x )$$

question 77

Multiple Choice

Simplify the expression to either 1 or -1.
- $$\cos \left( \frac { \pi } { 2 } - x \right) \csc ( - x )$$

• A) \(- 1\)
• B) 1

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