## cos π/6 (30)

### In mathematics, cosine (cos) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse

In mathematics, cosine (cos) is a trigonometric function that relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse. In this case, we are given an angle of π/6 radians (which is equivalent to 30 degrees) and we need to find the value of cosine for this angle.

To determine the value of cos(π/6), we can use the unit circle or the special right triangle with sides 1, √3, and 2. Since the cosine function is equal to the adjacent side divided by the hypotenuse, we can identify that the adjacent side corresponds to √3 and the hypotenuse is 2.

Thus, cos(π/6) = √3/2.

Therefore, cos(π/6) is equal to (√3)/2, which is approximately 0.866.

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