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Find the Exact Value of the Expression cos(tan1512cos145)\cos \left( \tan ^ { - 1 } \frac { 5 } { 12 } - \cos ^ { - 1 } \frac { 4 } { 5 } \right)

Question 7

Multiple Choice

Find the exact value of the expression.
- cos(tan1512cos145) \cos \left( \tan ^ { - 1 } \frac { 5 } { 12 } - \cos ^ { - 1 } \frac { 4 } { 5 } \right)


A) 5265\frac { 52 } { 65 }

B) 6365\frac { 63 } { 65 }

C) 1324\frac { 13 } { 24 }

D) 713\frac { 7 } { 13 }

Correct Answer:

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