How do you figure out the math problem sin-1 1?

Ok I have a trigonometry math problem that i cant get, its sin-1 (-1 is in the same place as an exponent would be) 1, so its sin-1 1 and i just don't get it! help!





It will show the problem in this link:


http://sholmes.shschools.net/blob/full/2鈥?/a> it's the 3rd boxHow do you figure out the math problem sin-1 1?
Okay, that means inverse sin (1), or what value


of x such that sin(x) = 1.


And x=90.


So, inverse sin(1) = 90.


SO, i guess it means 90 degrees.