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Use a Sum or Difference Identity to Find the Exact tan⁡20∘+tan⁡10∘1−tan⁡20∘tan⁡10∘\frac { \tan 20 ^ { \circ } + \tan 10 ^ { \circ } } { 1 - \tan 20 ^ { \circ } \tan 10 ^ { \circ } }

Question 230

Multiple Choice

Use a sum or difference identity to find the exact value.
- tan⁡20∘+tan⁡10∘1−tan⁡20∘tan⁡10∘\frac { \tan 20 ^ { \circ } + \tan 10 ^ { \circ } } { 1 - \tan 20 ^ { \circ } \tan 10 ^ { \circ } }


A) 2
B) 33\frac { \sqrt { 3 } } { 3 }
C) 3\sqrt { 3 }
D) 12\frac { 1 } { 2 }

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