True or false y4 equals 16 if y is 2.

False. This being because if we substitute y for 2 we get (2) x 4=8

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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.

Re-do the question and enter the picture