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QUESTION 6 Video 3-17 | Half Angle Formulas Given that sec a = 9/7 and a is in the first quadrant, determine the following. You

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QUESTION 6 Video 3-17 | Half Angle Formulas Given that sec a = 9/7 and a is in the first quadrant, determine the following. You can copy and paste this v symbol as needed. Please simplify your answers for this problem. a. cos a = b. sin a = c. cos(a/2) = d. sin(a/2) = e. tan(a/2) =

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