Write the expression as the sine, cosine, or tangent of an angle. Then find the exact value of the expression. 5x - COS 12 元 sin CoS 12 4. sin 4 Write the expression as the sine, cosine, or tangent of a single angle. 元 sin 12 sin 12 Cos - cos %3D 4 (Use integers or fractions for any numbers in the expression. Simplify your answer. Do not evaluate.) 5x 元 sin - sin Cos 12 cos 12 (Simplify your answer. Type an exact answer using radicals as needed. Use integers or fractions for any numbers in the ex

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