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(+ E t ^J> tr+ir} fr.rE +s) +g =Hl= Errl. ,rlE}rl]_tr-, +t+EE, 4EvJ, +E+ 5-g = EIF]4. +Eql vJ.q+ +++= =HJ-J+. (ra 2 +z) -Y.Pl(former)E =El.J+ trE^H= ++-Lrtrl 4E+g tr- ql a aTlql *al z]luJa.14. +=* e^l ,Jzl ^Jil= €il+trI. zrl+9 4E+ E= +E+3 kqoll 'J+.J+. 3. EGI= 5+-Ll-tr|. eD .el"J4r ,J*gE 4l+9 sEl= -srll +"J ql 9E+ t^loJr+. (+) ElqEql uIslzIEE .jt_ =ollrJ+ +ezlB g 6ltrl- eu (+) +E 'llElE +A +Bg ++. (+) =+2^l B s E^.1 vlflzl+(+rJ)E g]l+ : tsBF]+. (rB 3 +4) ("I) l=Al t;ld AEql q+ *4 9fz} 6J^J€r+. zt * Elf-=- trl-E rL - . =Cil=JLEI. ?t) +t+EE+ rIslzIEE gE6Iq H^JE+ =EJ+= "J=q. GD ^ae ql gC6I= zlLzl EI=6IE+ +Bg "JA+ zJ40 s Eq=+. tzJ= lAl-Ltrl. *;rl 4E= zll z\*-L z1-99 rlzl+4. +g ^l<I4 €sE E gzlal u}?+ 94 ++ (a4 4 +=) (a) ulel zl*(*YJ) a (b) trIdtll reJ 2 +E +g =++ #4 1B 'j -tal ? *Hltrol .^.EHlrlH.t -E -r--.I | -l _ECtt= 246810t2 14 lii -------> ^la (hr) r= 4 =5 LHgIE r= gr-E a8 -ll=t E @34 I I 1. Qt) (+) e) 2. ?l) (+) e) I + E I (c) 1400 1200 100(l 800 600 400 20o 5. ?E (+) 0 10-15 -117 -