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Find the Exact Value of the Expression $\cot \left( - 1215 ^ { \circ } \right)$

Question 251

Multiple Choice

Find the exact value of the expression.
- $\cot \left( - 1215 ^ { \circ } \right)$

A) $\frac { \sqrt { 3 } } { 3 }$
B) $- 1$
C) $\sqrt { 3 }$
D) 1

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