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!"#$ %!&'()$ *+,-+&./+01 2 $1 345678+9,-+./+01 2 $1 :456;+$ <=> 1 2 2 . . . q q F k re = ?@A$24 A , B $,-+C?8??6ε@2$ DE'<'C8FGH !"$ %!&'()?IJ$ *+,-+H346>KH9,-+H:46>*H$ <=> 2 . . Q E k re = ,-+C?8??6ε@2$ .L=M1 ' .F q E= r r @3N@|1|$O ,-+1346 F E r r ,-+1:46 F E ¯ r r P=+QFI!=QR*6S"J)=+=<TJ)$ ,+8M=/'DE'<'SUR 1 2 . . . n E E E E= + + + r r r r V 1 2 , , . . . , n E E E r r r =E'<'C8FG"?IJ$ !"#$% W=.L1+8<MM"X,'*+ / / . MN A qE M N= 9!V / / M N =6-+WX,MLYK>Z*+'J[$ MO\'*+ MN / / U E M N = 8 U E d = ]+-^+X+), MN MN A U q = ._V--V-/R`C6U="$ DE'<'>*V-/R$ &'()&*+", .+LF/?6 Q C U = .+L%( 9 . 9.10 .4 . S C d e p = *+??FPaWb gh U U£ 8 gh E E£ cERLJJ•\ 2 @\ @$$$@\ @\ F @3 1 2 1 2 . . . b n b n Q Q Q Q C C C C = = = = •H F @H 2 H $$$H •F@2 $$$ $ cERL)-R!>?ER-+L•H F @H 2 @H @$$$@H @3 F \F@ 2 \ 2 @ \ @$$$@ \ $•\ 2 \ $$$\ @\ F • 1 2 1 1 1 1 . . . b n C C C C = + + + @3,-+L 1 2 1 2 . b C C C C C = + ,d=UWLef==-FIL 2 2 . . 2 2 2. Q U C U Q W C = = = ,d=UL%( 2 9 . 9.10 .8 E W V e p = @3XQ<d=U'*+ 2 9 . 9.10 .8 Ee w p = !2 -./0 1 2 3$"345* 2 1$6 2 -! 7 33! 8 9 2 : ; -! 8 <]M g h i M j Fd k +d g C?l i + g g @m$ g C j 8h n M g n + i = k N@24 op ,$ B!h k g = i nM g h i $ FB!h k ? j i 2 n + i M j = g C j 8 n + i = k N 2 @lp$24 oq ,$ B,M i ++ i j M g h i M k .C k + j i ε@ k j ? j i 2 =C k h k = g C j 8 n + i = k FM+r -! 8 =] g F+ g ??h i i +sln g M g h i oAlq$24 o2s $ B!h i = g i M g n g $ FB!h i J i M=Z.n g F+ g $M g h i nM=Z= k Z@o2lq$24 o2A $ -! 8 >]C g j M g h i d g i +2C?lC j 8+Fd k = g 2lt,$uM i j M g h i + j C g = k s$24 op $!h i M g h i + j j C g $ -! 8 ?]C g j M g h i d g ??h i i +ml+ i +Fd k = g qls$24 o ,$M g h i j g + j C g = k oA$24 ot $!h i M g h i nC g $ -! 8 @]1+ j C k + j Fd k ?= g l i +lM g h i 1 2 k 1 ld g ??h i i + lC j 8+Fd k = g N@lv$24 om ,$,M i +1+ j C k +M i RK+ i + k = g M k g h i + n lh k + i C j 8 + i = g N 2 @slq$24 om ,$!h i 1 2 k 1 $ -! 8 A]M g h i M j 1 2 @t$24 ot k 1 @ot$24 ot d g i g g w k u i +q? ?h i $x i g = g i .+ g =MM g h i 1 s @ot$24 ot d g g lM i + Bw@mlu@$ FBw@mlu@24$ Bw@24l,@m$ .Bw@u@q$ -! 8 BuM g h i M j 1 2 @1 @1 s @2$q$24 o2A d g C? g Fh j + j i M k + g @2q$x i g Z i = g i .+ g =MM g h i 1 s $ -! 8 C]M g h i 1 2 @o$24 ot l1 @2lt$24 ov d g ??h i g w k u i +t$X g M g h i 1 s d g g $] j BM j j C+Mn1 s d k CFd k r FByC i + k g = i 1 s M i k M j 1 2 k 1 + n CFd k r **** -! 8 DH+ j C k + j M g h i 1@o24 op d g ??h i $ Bx i g Z i k g M g k g M j X i CY+ j 1+ j C k + g g 24$Dz6$ FBd g g XM g h i M j 1 B @o24 ov $x i g Z i = g M g i .+ g =M1 B $ -! 8 <E]M g h i M j 1 2 @1 @$24 ot d g g wlu??h i lFM i wu@q$ Bx i g k g M g k g M j XM+ g + j wu k i wu g m$ FBx i g = g i .+ g =MM g h i 1@o$24 ov d g g X$ -! 8 <<]M g h i 1 2 @ot$24 ot l1 @t$24 t d g g wlu??h i lwu@m$!h k Z i k g M g k g M+ g wul i wulJ+8= g i .+ g =M1@o$24 oA d g g 0OBBwul i w→ulA $24 p DB5 -! 8 <=M g h i 1 2 @ om$24 ot k 1 @2q$24 ot d g g w k u i +24? ?h i $!h k g h i M j XM j k g M g k j g RFd k 4$0J24l45 -! 8 <>uM j wlul??h i g k i + g w$uM i wu@mlw@sl g wd g M g h i 1 2 @lv$24 oA k g ud g M g h i 1 $ uM i M g k j g R j i RJJwu$ x i g 1 k O $0J2lp$24 oA lsq$24 s DB5 -! 8 <?]M g h i M j 1 2 @1 @1d g g wlu??h i lFM i wu@s$x i g Z i k g M g k j g R g d k M k + g + j wu k i uslM i + B1@ s $24 oq $ FB1@* s $24 oq $ -! 8 <@]M g h i M j 1 2 @2q$24 ot l1 @m$24 ot d g g wluM g ε@lwu@q$ B!h k = g i n M g h i $ ! FBc g E 2 k E = k k g M g k .1 2 k 1 C8 g M j y$!h k g h i M j yM j O 2 @mO k E 2 ↑↓ E $!h k k g M g k j g R g y$ -! 8 <AM g h i M j 1 2 @ t$24 oA k 1 @ot$24 oA ld g g w k u i +m? ?h i $ Bx i g Z i k g M g k j g R g XlJ+sM j wlulX g k i M k +$ FB!8M g h i 1 Fd k M g h i M j 1 s h k M g k j g R g +M j ]+ j wu i M k + k uM i w k O ] @2t$24 m DB$!h k .C i + k g = i 1 s $ -! 8 <B!M k d j =C i 8sM j wlulJwu@lu@2C?$C k = g d g i M g h i 1 2 l1 g w k u$x i g Z i k g M g k j g R g l,M i + B1 2 @o1 @q$24 ot $FB1 2 @1 @s$24 ot $ -! 8 <CM j w k u+ k d k j M g k J i + j M g k .M g h i M j Hd g YC8$uM i g = i k g M g k g w k u=C k = g = k O 2 @A$24 q DB k O @m$24 q DB i wC k Y u$!h k g = i k g M g k g X= k +M j + j wu$0plvq$24 q DB5 *********** !"#'%*$% -F<DX<Z=Z.U"'2.{Z<'J[l.>.LW=. <'*+V'<'2444DB$!W=$ -F=EX<1@m$24 ot .+8<'*+V'<O@244DBZ< '/R?;wu$"wu.4Z<.' BA =>'J[<Vs4 4 $" u.m4Z<.' CB =>'J[<V24 4 $!W=$ -F=<X<Z=ZUI?Q)^+GJFICl'*+FI?=" R(l./+$'<'FI=2444DB$|IFI=2$! <dWZ=Z?V-QRFI.$ -F==VFI?="R( JJ>++2$]+-FI .C=24$]}-"T?IFIlFIC4lqJz=F M+rX)-GFIC$ -! 8 =>]M j w k ud k d g Rd j i i k J i + j g M g k M k +0]h k Z n 5wu@249O@24 s DB$ B]M g +M g M i n w k u= k FM+r FB!h i + j = g M g M j Z k wM i u0F j 1+ g = g + j Z=Z -F=?X<G HA<E *D .+8.{Z"W< *+wul"@2ql '*+ E JJ>'w] >_w-]V<=>O@m$24 m DB$!='?.P+81M" $ -F=@!wu+"wU '*+ E JJ>w$u-u@ql Vu@q4 l\ u @24D$ $!\ wu l\ w '<'O$ F$ MGG HD<E *<E $!6'<'SUR"w$ -F=A!wu+"lw@mlu@slT'*+$DZ E J J>wl>_w-V<=>O@p444DB$! $\ wu l\ w l\ u F$=<Z=Z.+8_w-u$ -F=B]FI?="R( TJJ+.@24$]+-FI \@244D$X<Z=ZVQ)F^+ @p$24 q BJ.{Z'J[*RFI C$xP+8<WZ=Z$ -F=CFFI?="R(wlul JJ$wu@ plu@t$'FI='*+V<=>O 2 @m4444 DBlO @p4444DB$!D u lD WFIu-+{)-"FIw$ -F<DFI?="R(JJ./+l +<?I.@p C?$]+-FI=\@2444D$~JFIC'I <ZV+8<.{Z'J[*FI.$! !s AE E • • u w w u 2 E E $'FI$ F$H+e'Q)ZU24 ot J$ $=1+e'M$ .$DQ)Z?V-QRFI.$ 0u- Z @Al2$24 os2 |lZ@o2lq$24 o2A 5 &*()&*+",& -! 8 =D!+ g Rd j ??h i i M g .+@4l2•N g h i M g M i M g +M g M i \@244D$ B!h i M g h i H+ j + g $024•@24 op 5 FB,d i + g ? j + k k + i + g k M g = j i ε@m$!h i M g .+lM g h i k M g +M g M i + j + g =+ i k 8$024•l4lm•NlpD5 BDCn i + g i + k k + i + g k M g = j i ε@m$!h i M g .+lM g h i k M g +M g M i + j + g =+ i k 8$04lm•Nlm4•l244D5 -! 8 >E!+ g Rd j ??h i i M g .+@RN g h i M g M i M g +M g M i \@q44D$ B!h i M g h i H+ j + g $02l$24 os •5 FB,d i + g ? j + k k F j + g KM j ? j i dC i R$!h i M g .+lM g h i k M g + M g M i + j + g =+ i k 8$02l$24 os •l2RNl244D5 BDCn i + g i + k k k F j + g KM j ? j i dC i R$!h i M g .+lM g h i k M g +M g M i + j + g =+ i k 8$04lq$24 os •l2RNlq44D5 -F><!LV.+m4NlM+€FIL+-4D6VFM+M=Z- FICWLr0pp$24 2 5 -F>=u<L8IV.+vp4µNU-+-ss4D$ B!6d=U•M+L#=^=EJ$ FB!J+/RV+F6WL$u-'RVWL=p0J5 u2!M}<LV4•N‚44D$,)FIWL><+-24D$ B!WL$ FB!)LU$ -F>>!<LV.+4•N.>+-qD$ƒ+V€L?} +$ B!1WL$ FB!'LJ?R∆1@4l4421_FI.JFIC$ BKEWL„`FT q $!'LJ?RV ∆1M_FI.JFIC=;V$ -F>?.+WFLER)-R>+= 2 @4RNl @24RNl s @sRN$!.+ WF<LV$ -F>@FLU€F<ZJ$ 2 @s•Nl @ s @m•N$,)Xl,> <+V+-\@24D$e8 B.+WF<LV$ FB]+-M#L !m s 2 I JKLMN OPO4QFR) <STU o'<+F6 ( ) ( ) ( ) q C A t s D I = D oƒ)"I1+-(.C8.…?="'∆ q n e D = o'<?S q t I = oƒ)"I1+-(.C8.…?="' q n e = =()V !()W%) G€=M-R+$ ]+-\@\ 2 \ $$$\ $ '< 2 @ @$$$@ @ G† @† 2 † $$$† $ 5()X3X3 /+2#G€+<^+`=")+2?$ ]+-\ 2 @\ @$$$@\ @\ '<1+"FTS'<1+@ 2 $$$ $ G 1 2 1 1 1 1 . . . td n R R R R = = = = $ ,-+VG€JJ 1 2 1 2 td R R R R R = + $ >Y"$RZ4[ o,;"=W/s^+.C8.…$ oDy,;"w9='<1+"9 2 ='<1+$ o!S'<>;FTS'<?};"V$ QFX$\ oW.`8W=w@\@3J+/W.`%@\$ o,I"H@† @\$,-+"„I`M[ 2 U Q t R = oJ+/I%@† @\$,-+"„I`M[ 2 U P R = o0d5+/RW+w@O@3J+/+%@O$ o\@O=+-.CW+$0uTSJ+/<<I -FM+5$ o]+J+/+ 1 U r H E E I = = - 9,-+"„I R H R r = + l†=G W"$ ()$] <()W%) o,-++?+ 1 1 ; n n b i b i i i E E r r = = = = å å o,-++)+0Ol5O F @O9 F @ =()X3X3$]W!$^_`a !p b 2 O F @O b r r n = ‡ >()c,)WdeV,+)+0Ol5 oc#V+)-RI*+?,@$$ oO F @O 2 @O9 1hang b r mr r n n = = BA ̀ I T ̣ P oooooΙoooooo f1g/hihhjijkbl -F<FV• 2 24Doq4ˆ9 24DompˆU€+ -6$ B!G† 2 $u-T•JF6'$ FB!J+/M+LW"$ -F="6$\ wu qDl†@‰l•sD‚sˆl† K =F-G$ B?† K @s‰lJ+/W•$ FB•JF6'6† K RIVPFTFM+r B† K FTFM+J+/M+LMG8=>/r!J+/ 8r -F>X€^+.C8.…VG†@4Ω<+-?S\@ qD$!J)M=Z1+-.(W.C8.…2R;022lp$24 2A 5 -F?X"0] 42 50] 4 5l>O@2t4DlG ??l† 2Š @† @244Ωl?-VG† D @ 244DlwRZ?-VG/}$xPJ)„RZ ?-?- -F@u<1+8VJ+/<2D$ B,-+1+8U"RM>'< 2 @w6 +-=\ 2 @4D$!W.` =UI1+8J+'24J$G W1+88FTFM+r0m44‹lmΩl2q4‹5 FBƒ+?"Rw1+8=+R>'< @2w$!W.`JG" =UIFM1+8f'24J$0t4‹lm4‹5 -FAw1+8VJ+/<DlG2ΩV.+=Um4w$ B!dW1+8$02lvs$24 q ‹5 FB,)W1+88>•="2ltDo4lsqˆ$,QKE<J•+J+/W1+8$ 0F6'lA4Œ5 -FBX g M g 0]25$uM i Z@2lpD9@2BsΩ9† 2 @mΩ9† @tΩ$!h i B k g . k M g 1++ k k 1+nM g j $04lpwl2Bpwl2Bqw5 FB]M g +M g M i n g + j + k $0mBsD5 BJ+C i +J+/+ j + k $04lvpˆlAqlvŒ5 -FCX g M g 0]5$XnR i J+C i M g g Z@2lpD k M g j @4lpΩ9† 2 @mΩ9† @2 Ω9† s @sΩ$!h i Bƒ+C i M g g k M g j + j F g + k $ FB k g . k M g 1+nM g j $04lpwl2BqwlmBsw5 BJ+C i M++ g M† $0mBsˆ5 !q † x x x K † u w † 2 R R 0]45 b 5l0 rE m i b m 5l0 rE 5l0 rE 2 R R i 0]425 -FDX g M g 0]s5$uM i s+ k i +n+ k i Z@sD k @2Ω$!h i k g . k M g 1+ g k M g +M g M i n g + j n+ k $0swl4D5 -F<EX g + k M g i Z@qDl@Ωd i i g k g FM i j †$ g i g + j †M j BJ+C i g k mˆ$0vΩ5 FBJ+C i g k g g $!h i J+C i g g k 8$0Ωlmlpˆ5 -F<< g M g 0]m5$uM i O@2Dl@Ωl† 2 @4lpΩl† = k FM i $j] j † R j Fd k FM+M j J+C i M++ g B!M† g g J+8J+C i g g k 8$0lpΩl2mlmˆ5 FB• j g k g g J+8J+C i g g k 8$02lpΩl2tˆ5 -F<=X g M g 0]p5$uM i O@2Dl@sΩl† 2 @2Ωl† = k FM i j $] j † R j Fd k FM+M j J+C i M++ g M† = i C i r!h i i g = i C i k 8$0mΩl2ˆ5 -F<> g M g 0]t5$uM i O 2 @ADlO @sDl 2 @ @4lpΩl† 2 @qΩl† @mΩ$Z k = g 2pDo lpˆ$ B!h k J+C i M g g k M g j + j F g + k $ FB!h k k g . k M g 1+ i i k \ wu $ B!h k \ X, $Z k i J i Fh k k ?r!h i J+C i M++ g + j Z k $ -F<? g M g 0]A5$uM i O@2Dl@2Ω$Z k 2 = g qDoqˆl = g qDosˆ$†= k M g j +C k $ B!h i k g . k M g g i k M g j nZ k $ FB,M i +Z k J i Fh k k h k † i i g Fd k FM+r!h i J+C i + k i i i g i $ -F<@ g M g 0]245$uM i O@vltDl@4lmΩl† 2 @† @† s @sΩl† m @qΩ$ B!h k M g j g k l k g . k M g 1+ g h i k 1+ i M g j l\ X, $ FB, i X,Fd k <wRZ?-VG/}$X€wRZ?--X,rƒ)„wRZ?-F M+r -F<A g M g 0]225$u g + k k . n 8n. n 8 k qR i M i RlnR i Z@2lpDl@4lpΩ$ Z k 2 sDo2ˆ9Z k qDosˆ !v 5l0 re 2 R R 0]25 R 2 R s R 0]5 0]s5 w u 2 R R 5l0 rE 0]m5 2 R R 5l0 rE 0]p5 R 5l0 22 rE 0]q5 ( ) 22 l rE ( ) ss l rE 2 R ( ) l rE 0]v5 | R u w 0]t5 ( ) 22 l rE ( ) l rE R u w • • i 2 R 0]225 * O 2 2 R • …… …… R y w u 0]A5 2 R 5l0 rE 0]245 R u w • i 2 R • m R s R 5l0 rE w • • u 0]2s5 ( ) 22 l rE R ( ) l rE ( ) ss l rE B|† 2 @22Ωl† @qΩlh k k g k M g +M g M i nZ k $,C g KZ i g J i nZ k $04lpwl 4lsvpw9l4pDlmlpD5 FB!h k † 2l † M j i Z k J i Fh k k $0AΩll2Ω5 -F<B" † 2 @† @p Ω l† s @ Ω l† m @q Ω Ω== 2lsl rV ξ $!6 $'<.`"$ F$]+-W+$ $'<.`1+G$ .$,=U}"'@2R$ Z$J+/+l+J+/+$ -F<C"6z Ω== 2l24 rV ξ l† 2 @q Ω l† @2t Ω l† s @m Ω l† m @v Ω ! $'<.`"$ F$]+-W+$ $dM+L"'@R$ .$'<.`1+G$ Z$d.++/R'@R$ -F<DFV• 2 0sDo2lpˆ5l 0qDosˆ5 Ω== l24 rV ξ l† 2 @s Ω l† @q Ω $! $'<.`"$ F$'<.`1+•$ $J+/M+L•$ .$]+J+/W+$ -F=E"6z 0qDoqˆ5l† 2 @q Ω l† @† s @24 Ω l† m @22 Ω l Ω== 2l4 rV ξ l ! $'<.`"$]+-W +$ F$J+/M+LWFV•$ $dM+L"d.++/R '@2$ .$]+J+/W+$ -F=<" 0sDoqˆ5l† 2 @lp Ω l† @m Ω l† s @ Ω l Ω== 2l2p rV ξ ! $y"+-W+$ F$J+/M+LWFV•J+/+$ $,=U}MFV•'@2R$ .$]+J+/W+$ -F=="6z 4 l24 rV o = ξ l† 2 @ Ω l† @t Ω l† K F-G$ $u-J+/}MGFT+$! $ F$!6† K J+/""$!J+/"V$ $J+/M+LM† K "$!J+/"V$ -F=>"6zu<+24R ER)-Rl#RV Ω== l4ltl2 4 rV o ξ 2 0qDosˆ5l 0sDo2lpˆ5$ 2$!J+/<GF<+$ $ | • J F6 '$ !6 !t rl ξ = < d < d = -b < rl ξ = ? > rl ξ > - b < = ? = rl ξ < † 2 = < rl ξ > - b < = ? = rl ξ > - b < $y1+"$ F$]!F<+r]+J+/F<+$ $† K l†$ -F=?Vq+)+l#+Vξ@qDl@2ΩU€l#+$ †€>"=<G†@sΩ6/8J+/"=mtˆ$!6€+$ -F=@V<J)FV•="0lpDo2lpˆ5€F<+s4+ER#UR)K[$ •JF6'6^RI€*+/FM+FV•r!6€+l€•+ J+/WF<+)>_€$ !A ngoM/0 0C+}FI5 2B% i FM j + i g =+C g F j k M g h i l g =+C g +=F$,M+Z= g +=F$ B,M+ g .++8M i M=Z.&IJWQ$ sB!Z+8-M=ZRCFJ?+Q.…Q9QŽ.Q ŽC$ mBM g k =6r,M+/W' pB,M+P• k g M g k g g M j l k J i M g lRSl'*+$ qBF-Z k g M g k W<M g h i M j $ vB,M+ i h i C i k J i M g $ tB,+8M=/'$ ABP•+-'$ 24BD- i =MM g n k g M g k k M g +M g M i M g k M k +$ƒ+8 i + j Z i k g M g k $ 22B,M+ i h i C i + j C g .CnCFd k M g '$ 2B/+"W+ g M g l+ g R(Rd j $ 2sBP•M g .++ j + g $M g .++ j + g R+ g + g k i 8M i + i k rDM i l+ i h i M g l g i g = g i h i M g .++ j + g Rd j M g ƒ$ 2mB]+->"WL=6r 2pBC g R i h i M g .++ j F g + g LZ i R i M i RlZ i RJJ9J+8)>L$ 2qBDM i i d= g + j + g M g n h i M g $ 2vBDM i i d= g M g k LR(;[Q<d=U '$ 2tB g h n . k M g l k g . k M g l+lJ+/<W+$ 2AB% i FM j + g =+C g Y g g „[G†$ 4B,M+ i d g M j + j M g j Z i R i M i RlJJ$ 2BW.`=6r BJ+/W.`=6r sByLL j M g = k h k r$D- i h i J+C i + j .LL j M g $ mB% i FM j + g =+C g ‹+oZK$ pBD- i lJ+C i +J+/+ j + k M g $ qBƒ+/RIW8+=6rP$ vBC g R i KPdlJ+C i +J+/+ j i 8+$ tByP=+QFId=UP=+C‹+oZK$]e8-=QRRF+P=+Q• "'URV2+G"†$|VUI"+r‘ GWV-r ABD-F+[P=+Q•"'URV+l8+G"†$ s4BDz6-F+[P=+Q•""[,+’†9X8+’†9I+8+ 0•S1+5 s2B!h k F k 8 i d i i M i R i + k M g k F g $ƒ+8'UR+)+$ sB!h k F k 8 i d i JJ i + k M g )+ k F g $ ssB!M i k = k d i + k M g j g R i K i $DM i i h i J+C i M g g k M g j + j F g k 8$ smBX€+SUR)K[=6rD-F+[J+/<GWF<$ spB,M+/W?="$ sqy k M g i k |= g 9C i M g RC=6r svByJV WM=Z.?= g c j h i +8MCC8M g j lJ g j M g lJ g R+ g + g k M g g $ stB]UM g M g = k h k rƒ+C i M g g M g R+ g + g k n 8M i + i r sAB]UJM+.…=6r,M+ WQ=+JM+.…?Id[.LW;$ m4B% i FM j +-F+[ g =+C g NC8M k M g RC$,M+ k i .+ g + j M g g M g RC$ m2B/RC=6r|KI8U.r,M+ ?KI8U8$ !24 [...]... 10,67.10-6J) Tụđiện có diện dung 2µF đã được tích điện với điện tích 10-6C Nối với acquy mà 2 cực hiệu điện thế 20V, với bản dương nối cực dương của nguồn Tính độ biến thiên năng lượng của tụ này - Trang 11 . I JKLMN OPO4QFR) <S TU o'<+F6 ( ) ( ) ( ) q C A t s D I = D oƒ)"I1+-(.C8.…?="'∆. i g i $ -F<@ g M g 0]245$uM i O@vltDl@4lmΩl† 2 @† @† s @sΩl† m @qΩ$ B!h k M