Cos 30 Degrees. In trigonometry, the cosine function is defined as the ratio of the adjacent side to the hypotenuse. If the angle of a right triangle is equal to 30 degrees, and then the value of cosine at this angle i.e., the value of Cos 30 degree is in a fraction form as √3/2.Click to see full answer. In this regard, what is the Cos of 30 degrees as a fraction?The value of cos of angle 30 degrees is equal to √32 in fraction form exactly. It is an irrational number and equals to 0.8660254037… in decimal form and the same value is considered as 0.866 approximately in mathematics.Also, what is the COS 30? Answer and Explanation: The exact value of cos(30°) is √(3) / 2. We can find this using the cosine half-angle identity property which is as follows: If an angle, Subsequently, one may also ask, what is the exact value of cos 30? The exact value of cos(30) is √32 .What is COS 1 in radians? The Value of the Inverse Cos of 1 As you can see below, the inverse cos-1 (1) is 0° or, in radian measure, 0 . ‘1’ represents the maximum value of the cosine function. As you can see from the graph below, cosine has a value of -1 at 0 and again at 2Π and 4Π and every 2Π thereafter.
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