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1. (09 pts.) Simplify the following into a single term. Use exact numbers. - cos b. sin(5y) - sin(8y) c. 1- (sin z - cos z)2
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Solin 9. Sin (-3x) Los -x) cos (A - 3x) - Sin(-x) sinax cos x t singx sina sinax (sinx-cosx) Au b. sinsy - sin sy qcos (syt8

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