! " # # # $ # % & % # % | # ( %| '# ( %) * % + , . #/ #0 #- # #- ( #/ 1 & 456 , 046 % 1 1 " 856 23 ( 2/ 046 !7 ( !/ 9 # . 3 − 0 / , . .: ; < 3 4 < : 4 .3 < < 4 4 : : ; .+ = ; ( 3 = < ; , 2/ = < , 3 , , 23 = : % , : ( < =0 ! / 1 # 1 ! 1 1 1 > ! , " #/ #0 1 # 0 . 0 = =/ ( − ) 0 '# ( # 1 . ) =/ = 0 1 ⋅( 1 ) − 0 # 1 1 % " # 1 # # =/ = , .? ( − . ) 0 =/ = ⋅( − ) 0 1 . # # ( '# ( )0 : / / ; 0 < < (/ / % = / 00 1 3 (0 < 4 5 5 0 < (/ / : / / 4 5 5 /0@8 = / 4 . # 3 < 4 : ; B # ( (0 (/ 5 / 0 / 0 0 0 / 8 C 1 '# ( < / 5 / < /0@8 = / 4 )0 A '# ( < 0 5 0 < /0 )0 / 00 % + 1 1 1 1 1 1 * 1 % % /55 . = ! & = ! ⋅/55 1 , % 1 # . ⋅ 0 = 0 =/ ? 0 0 = 0 − =/ 0 # =/ = ( − ) 0 = , − 0 + 0 = 0 =/ ( 0 + 0 −0 ) 0 = 0 + 0 −0 = 0 − = 0 + 0 −0 0 = − . 0 <5 1 " # 5(0 0(< <(: :(8 8 ( /5 B 0 ; /: /5 4 <5 / 3 4 ; 7 = 0 = 0/8 <5 /3:5 0 − (4 <4) <5 A0 0 :3 <55 <75 <54 /3:5 A 0 0/ 85 ;5 <4 0/8 = 4# <4 = 3< − 07 ; = < 3 * , " % , * , D E , E . =E ( $ ? , /<: 00 & 35 /8 , 8 (< & , , , 8 & (< % E 1 % $−$ & = /<: & // . 35 − 00 // & = /8 − 00 // & = = 5 # ;3 = −5 # 3: ! # , $ % , = ⋅& + $ F2 " 0G & E = //A 0 H 00 = << & $ , % , , , 1 B , % /5 45 1 % % , # %= , # .* . A1 H B 44 ; 0 . ' & = ; − 4 #4 = 5 # ;4 0 B ( = /5 ⋅ 5 # ;4 + 45 = 4; #4