There's a square root sign in a TI. In my TI89, it's above the multiplication sign ( )
Is it what you were looking for ?
I was wondering how would i find x degree if 3√ 5 is the hypotenuse and 3 is the adjacent side I would have to use cos-1. The 3√ 5 is what i don't understand the most how would i put that into a TI calculator? Thanks for your help.