,9V]SE ,TRIGONOMETRIC ,FUNC;NS ,EXAMPLES #A4 ,!TA EQUALS ! >CTANG5T ( ;X EQUALS ! >C TAN ( ;X IS WRITT5 _% .? .K ARCTAN X .K ARC TAN X _: #B4 ,! 9V]SE COS9E ( Z]O PO9T FIVE IS WRITT5 _% COS^-1 #0.5 _: #C4 ,! >CS9E ( "O EQUALS ! >C S9E ( "O IS WRITT5 _% ARCSIN #1 .K ARC SIN #1 _: #D4 ,! 9V]SE TANG5T ( ! SQU>E ROOT ( ?REE IS WRITT5 _% TAN^-1 >3] _: #A