,DEF9ITE ,9TEGRAL "<,US+ ,DIRECTLY ,OV] & ,"U"> ,EXAMPLES #A4 ,! DEF9ITE 9TEGRAL F A TO ;B ( ;F ( ;X DX IS WRITT5 _% "!%A$ DX IS WRITT5 _% "!%0<5]X^2"DX _: #C4 ,! DEF9ITE 9TEGRAL F NEGATIVE PI TO PI ( ! COS9E ( OP5 P>5!SIS ;X CLOSE P>5!SIS DX IS WRITT5 _% "!%-.P<.P]COS (X)DX _: #A