Question: Double-Angle, Reduction, and Half-Angle Identities Evaluate trigonometric expressions using double-angles, reduction, and half-angle identities. Use a half-angle identity cos open parentheses theta over 2 close

Double-Angle, Reduction, and Half-Angle Identities Evaluate trigonometric expressions using double-angles, reduction, and half-angle identities. Use a half-angle identity cos open parentheses theta over 2 close parentheses equals plus-or-minus square root of fraction numerator 1 plus cos theta over denominator 2 end fraction end root to find the exact value of cos open parentheses fraction numerator 17 straight pi over denominator 12 end fraction close parentheses. a.) short dash fraction numerator square root of 2 minus square root of 3 end root over denominator 2 end fraction b.) short dash fraction numerator square root of 2 plus square root of 3 end root over denominator 2 end fraction c.) fraction numerator square root of 2 minus square root of 3 end root over denominator 2 end fraction d.) fraction numerator square root of 2 plus square root of 3 end root over denominator 2 end fraction

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