Use the Cofunction Identities to Find an Angle θ That $\cot \left( 2 \theta - 20 ^ { \circ } \right) = \tan \left( \theta - 10 ^ { \circ } \right)$

question 60

Multiple Choice

Use the cofunction identities to find an angle θ that makes the statement true.
- $\cot \left( 2 \theta - 20 ^ { \circ } \right) = \tan \left( \theta - 10 ^ { \circ } \right)$

• A) \(\theta = \frac { 17 ^ { \circ } } { 7 }\)
• B) \(\theta = 10 ^ { \circ }\)
• C) \(\theta = \frac { 83 ^ { \circ } } { 7 }\)
• D) \(\theta = 40 ^ { \circ }\)

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