Plsss help! No links pls ! It’s for a test! Thank you! Given f(x) = 3 – x, find f(-2).

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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.