Con Lin Lon+ n. mlfmtm EYE. [ Lm. algebra. get for me 2 : Exercised. follows by. ( Lm Ln. follows forin> o. Ken : Ln IX > Luan -173cm ' sheet 9

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11 t o Exercise 3 : r Hug 7 Bug 120 Bert 2g Bru 2 Bgo Big 2g Bye Hur i e t is tisyetric uder exchge of the first 2 idices Moreover defiitio fro its it is der tht it is uchged uder cyclic peruttio H Hug gro Usig it ti syetry follows i the first 2 idices i e Hg Huge Hq chges sig peruttio Hs uder y Hgge o H cyclic H is totlly tisyetric lb f Bro 2 Eu Er flyig 4204 fidge S H Co s E O c 8 Bro S Bro t S Bru

12 fddx tffdx d Vry the ctio S fs H His rt Es fddx Hs 4S Dog 12 SBgr/2gSBro T cyclic Hs syetry d Bog The folk SB 2 Hs boudry ters re ssued to Vish or if Boo flls off fst eough if there is o t ll boudry SS o for ll tisyetric SBU Sice Hr " is tisyetric it follows Hve o copre vcuu : with the Mxwell eqs i Jr FM o

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