Solved

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

Question 378

Multiple Choice

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

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

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