Evaluate Without Using a Calculator by Using Ratios in a Reference

question 10

Multiple Choice

Evaluate without using a calculator by using ratios in a reference triangle.
- $\cot \frac { 3 \pi } { 4 }$

• A) \(- \sqrt { 2 }\)
• B) \(- \frac { 2 \sqrt { 3 } } { 3 }\)
• C) \(- \frac { \sqrt { 3 } } { 2 }\)
• D) \(- 1\)

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