Use a Sum or Difference Identity to Find the Exact $\tan 105 ^ { \circ }$

question 140

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\tan 105 ^ { \circ }$

• A) \(2 + \sqrt { 3 }\)
• B) \(\frac { 2 - \sqrt { 3 } } { 4 }\)
• C) \(- 2 - \sqrt { 3 }\)
• D) \(\frac { 2 + \sqrt { 3 } } { 4 }\)

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