Find the Exact Value of the Expression $$\frac { \tan 70 ^ { \circ } - \tan \left( - 50 ^ { \circ } \right) } { 1 + \tan 70 ^ { \circ } \tan \left( - 50 ^ { \circ } \right) }$$

question 188

Multiple Choice

Find the exact value of the expression.
- $$\frac { \tan 70 ^ { \circ } - \tan \left( - 50 ^ { \circ } \right) } { 1 + \tan 70 ^ { \circ } \tan \left( - 50 ^ { \circ } \right) }$$

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

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