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<+ g = ^l> 1. +g =Hl= Ertl. (rr) ?l€4 ^I-tr- "l ++=- =El+tr}. (4 :=e ef (darw back) +€ql "l+g E.EIE 4u E= =uloJtrI. 2. ?= "Jgl-= trs-drl. m g€r+ E€el ,l+= ,JE+4. 0D ?l€e] z)&z)s+ EB ?q€+ +"J+tri. (tr1) =+-7 4 s=:-f,_Q-E 9l^l$ €46}jt r a7)= aAel+.(uH3+=) 3. 6l:d= r1l+Ertrl. (4 a Hlg 7e6I:/ 6}€ ttzl-= g4+=tr1-. (4 g€g aHI +lql sselts;r gE4zl 9+-E+ +E^IE lleqI4. (trI) EH^Ie+ qA^L= -+7 oJ,,i4l ultl + Fldtsrl. ar:d E rll+zttrl. tt€ttz}-= 94Fz EJ-+gI = . -89 _g-= ^-il+trt. (zH 4 +z) (r+) sE^tg+ rla +E^I= Hl 4cu}. 5. fl-d= =-dzltrl-. FD tl€g =qllll- +sr^l= E-E-ts+ +€E HI-+ 4.,lzl +ydEl al #qtu}. (4 +1€9 ,u[u]tr}. (-zal s *=) 6. EE E aGl= xlllFolol tr^lZl.trl. (4 = .el= 4uiE-tr- -=-s E4 = 'q= AlzI6.JtrI. (q) ;qg ulut.C"l +€ql ,Jzlg5-+ €^l *uI. . - EE-9-rr x:', lal 3 =alol.J Al==o; f= ,Jgl- ql - El /r l-6J xFol JE= - Od --- 'rEl tal 5 fl-d$ uufl ' .! +-d _ -= u4 ;i€ :]aJ 5 9JEEJ +:d 4. ?t 7 . +:d = -sr Pl -Lltrl. (z) 6JoJxl-=- ^I+6I-l sl.Bql al€g gA (Ll) +"J^l +=* +€ql +E6JtrI. (:zrJ (tr}) +"J =trl= qI+. 8. 8el EE= -sltrl. ]-u r] d rtT' 6 +a) -73 -