Question

What is the exact value of cos 30° ?

Enter your answer, as a simplified fraction, in the box.

Answer 1

cos(30°) = (√3)/2

Explanation:

You want the exact value of cos(30°).

Short trig table

From your knowledge of the short form of the table of trig function values, you know that ...

`\boxed{\cos{(30^\circ)=(√(3))/(2)}}`

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Additional comment

Some calculators may be able to give this value as a fraction. (See the second attachment.)