I am trying to find the inverse sin key to solve this equation
To get the inverse sin key, click the " 2nd " key in the top left corner, then click the " asin " key, which is right below it. Then enter your number and close parenthesee.
Or, you can type this into the box: asin(2.23/3.78) and hit enter.
You should get....
asin(2.23/3.78) ≈ 36.153° or asin(2.23/3.78) ≈ 0.631 radians