twatiatied author. Hint ises frimple 31 The set of wathen whe bre beth autiratid and not new. The set of muthon whs we enther succeinh oe new (er botk) The set of averers athe are both ancurcashal whe not hem. The set of wuthes who are enfer swiewha ar nit new (or beth) Find the mamber of elements CAN contalns. exeravert The fotewing doble shoes the resuts of a survey of authors by a fictidecs pullishing company. establahed authors. HINT [See Exampie 3.] Descripe the art. C o N in werge. The set of authors who are both iuccesuful and not tarw. The set of authors who are ether suctisisful of new (er betis). The set of authors who are boch urovicesstal and not new The set of authors wis aie elther fugtessid or Aat nes (or botn). The set of authges mha are both successhil and new Find the number of elements C a N2 comtaind. eisments