Find the following in a simple radical form:

sin (30)

sin (30 degrees) = 1/2

sin (30 radians) = - 0.98803162409

Step-by-step explanation:

Making a 30-60-90 triangle, find the 30 degree angle. Sine is opposite over hypotenuse. Since 30 degrees is the smallest angle, the side opposite it is has side length x, and the side opposite the hypotenuse has side length 2x. x/2x=1/2.