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Evaluate the Expression cot⁡(−90∘)\cot \left( - 90 ^ { \circ } \right)

Question 98

Multiple Choice

Evaluate the expression.
- cot⁡(−90∘) \cot \left( - 90 ^ { \circ } \right)


A) −1- 1
B) 22\frac { \sqrt { 2 } } { 2 }
C) Undefined
D) 0

Correct Answer:

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