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Cos Calculator

Online Cos function calculator, cosine function calculator, can calculate the cosine function value of an angle through Cos(X).

Cosine is a trigonometric function. In a right-angled triangle, the ratio of the adjacent side to the hypotenuse of any acute angle ∠A is called the cosine of ∠A, denoted as CosA.

Cos(x) function value table:
x(°)        x(rad)        cos(x)
180°         π               -1
150°       5π/6         -√3/2
135°       3π/4         -√2/2
120°       2π/3           -1/2
90°         π/2               0
60°         π/4            √2/2
30°         π/6            √3/2
0°           0                  1

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