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(Solved): Find the exact value of each by using a sum/difference formula. 7) \( \sin -\frac{5 \pi}{12} \) 8) ...


Find the exact value of each by using a sum/difference formula. 7) \( \sin -\frac{5 \pi}{12} \) 8) \( \cos \frac{13 \pi}{12}

Find the exact value of each by using a sum/difference formula. 7) \( \sin -\frac{5 \pi}{12} \) 8) \( \cos \frac{13 \pi}{12} \)


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GIVEN 1. sin?(?5?12) 2. cos?(13?12) Find the exact value of each by using a sum/difference formula.
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