The arcsin of (9/16) isn't 55.8. The arccos of (9/16) will give you that answer. Go to the onsite calculator. Hit the "2nd" button and you will see the "acos" button. Hit this, key in 9/16, hit "Enter" or the "=" key and you will get your result.
The arcsin of (9/16) isn't 55.8. The arccos of (9/16) will give you that answer. Go to the onsite calculator. Hit the "2nd" button and you will see the "acos" button. Hit this, key in 9/16, hit "Enter" or the "=" key and you will get your result.