Find the Exact Value $\cos \left( 2 \tan ^ { - 1 } \frac { 5 } { 12 } \right)$

question 52

Multiple Choice

Find the exact value. $\cos \left( 2 \tan ^ { - 1 } \frac { 5 } { 12 } \right)$

• A) \(13 / 6\)
• B) \(5 / 6\)
• C) \(13 / 119\)
• D) \(169 / 119\)
• E) \(119 / 169\)

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