Use synthetic division to find p(3) if p(x) = 2x ^ 4 - 3x ^ 2 - x + 2 . 16pts

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.