What is 1 cos 2?

1 cos 2 is an expression that involves the cosine function of the angle 2. To evaluate this expression, we need to know the value of cos 2 which is approximately -0.416. Therefore, 1 cos 2 is approximately -2.400. The value of this expression depends on the value of angle 2, which can be measured in radians or degrees. Cosine is a trigonometric function that relates the length of the adjacent side to the hypotenuse of a right triangle with one of the acute angles equal to 2. Cosine values can be negative, positive or zero depending on the quadrant in which the angle lies.