Write 512 as a product of primes.

2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 512. It can also be written in exponential form as 2 to the power of 9.

Step-by-step explanation:

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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.