Question

What is the exact value of cos 30°?

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

Answer 1

cos30 = √3 / 2

or cos30 ≈ 0.8660254037

Answer 2

cos 30° can be evaluated using the trigonometric identity: cos 30° = cos(π/6) = (√3)/2.

Therefore, the exact value of cos 30° is (√3)/2.