Let C be a set in three - dimensional space and let @ IC ) be equal to the volume of C. if Chas finite volume ; otherwise . let @ !C' ;...

Let C" be a set in three - dimensional space and let @ IC" ) be equal to the volume of C. if Chas finitevolume ; otherwise . let @ !C' ; be undefined . Find @Icj .( a) ( = (1 2. 4. 2 ) ERY : D < < < 2, 0 = 4 5 1, 0 < < < 3)`( b ) C = ( ( 2. 4. 2 ) ERS : 12 + 4 2 + 2 2 2 1).