Use the cofunction identities to find an angle that makes the statement true.
-$$\frac { \tan 80 ^ { \circ } + \tan 70 ^ { \circ } } { 1 - \tan 80 ^ { \circ } \tan 70 ^ { \circ } }$$
A) $- \frac { 1 } { 2 }$
B) $- \frac { \sqrt { 3 } } { 3 }$
C) $- \sqrt { 3 }$
D) $- 2$

Question

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The Answer of Use the cofunction identities to find an angle that makes the statement true.
-$$\frac { \tan 80 ^ { \circ } + \tan 70 ^ { \circ } } { 1 - \tan 80 ^ { \circ } \tan 70 ^ { \circ } }$$
A) $- \frac { 1 } { 2 }$
B) $- \frac { \sqrt { 3 } } { 3 }$
C) $- \sqrt { 3 }$
D) $- 2$

Use the Cofunction Identities to Find an Angle That Makes tan⁡80∘+tan⁡70∘1−tan⁡80∘tan⁡70∘\frac { \tan 80 ^ { \circ } + \tan 70 ^ { \circ } } { 1 - \tan 80 ^ { \circ } \tan 70 ^ { \circ } }1−tan80∘tan70∘tan80∘+tan70∘​

Use the Cofunction Identities to Find an Angle That Makes $\frac { \tan 80 ^ { \circ } + \tan 70 ^ { \circ } } { 1 - \tan 80 ^ { \circ } \tan 70 ^ { \circ } }$