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Express each of the following in terms of the cosine of another angle between 0 degrees and 180 degrees:a) cos 20 degrees b) cos
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thanks oobleck appreciate it
Express each of the following in terms of the cosine of another angle between 0 degrees and 180 degrees: a) cos 20 degrees b) cos 85 degrees c) cos 32 degrees d) cos 95 degrees e) cos 147 degrees f) cos 106 degrees My answer: a) - cos 160 degrees b) - cos

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