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Find the Exact Value csc⁡(−π2)\csc \left( - \frac { \pi } { 2 } \right)

Question 334

Multiple Choice

Find the exact value. Do not use a calculator.
- csc⁡(−π2) \csc \left( - \frac { \pi } { 2 } \right)


A) 1
B) -1
C) 0
D) undefined

Correct Answer:

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