Solved

Use a Sum or Difference Identity to Find the Exact $\tan \left( - 15 ^ { \circ } \right)$

Question 4

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\tan \left( - 15 ^ { \circ } \right)$

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

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