Convert to exponential form

3^3

Explanation

When you have two numbers being multiplied with exponents you can just add the exponents. 8+-5 is 3.

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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.