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Use a half angle identity to find the exact value cos 105 O A cos...

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Algebra

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Use a half angle identity to find the exact value cos 105 O A cos 105 cos B cos 105 cos Which half angle formula should be used to find the exact value of cos 105 Select the correct choice below and fill in the answer boxes Simplify your answer including any radicals Use integers or fractions for any numbers in the expression OC cos 105 cos O D cos 105 cos 5 11 1 cos 2 1 cos 1 cos 1 cos 1 cos Question 5 5 6 15 Setup Solve Part 1 of 2 1 cos 2 HW Score 86 11 Points 0 67

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