INVERSE TRIG

inverse sine and arc sin are the same thing

$$sin^{-1}(ratio)=asin(ratio)=\theta$$

You use inverse trig when you have the ratio and you are looking for the angle.

One complete revolution is $$360^0$$   or  $$2\pi\:\: radians$$

I was curious on how to find the Arcsin and Arcos Arctan and the inverse in degress. and how to find the radians.

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The on-site calculator will do that for you....hit the 2nd button to access the inverse trig functions. You can choose either degree or radian measure.

Note, that if you want the radian measure in terms of pi, use the conversion:

(inverse value returned in degrees) X  (pi) / 180

Also, take care to remember in which quadrant the angle lies !! For instance, sin^-1(1/2) = 30°. But this angle might also be a 30° angle in the second quadrant, i.e., 150°.