Tiu lun GVHD:PHAN C HUYNH

Tiu lun GVHD: PHAN C HUYNH

BAI TP DANH SCH NHM LM TIU LUN

1- QUNG MINH NG MSHV: 1385201160042- TRNG QUC CNG MSHV: 138520116003BAI TP

Chng minh v tnh tng ng ca cc phng trnh v cc ch s di y tng ngphng trnh ma trna)Dji=Bij =T =b)bi=Bijaj===c)cj=Bjiai ,=T ==d)s=Bijaiaj ,s=T==6e)Dik=BijCjk===f)Dik=BijCkj=T==2A9.a)Nu Tij = -Tji .chng minh rng T ij.ai.aj = 0 giai

T ij.ai.aj=T11*a1*a1+T12*a1*a2+T21*a2*a1+T22*a2*a2=- (T11*a1*a1+T21*a1*a2+T12*a2*a1+T22*a2*a2)=0b)Nu Tij = -Tji va Sij = Sji.chng minh rng T kl.Skl = 0

giaiT kl.Skl= TijSij=- TijSji=02B19. Cc ma trn ca mt tensor T i vi c s {e i} l=Tm T11, T12 v T31 i vi mt c s bn phi ei ni ei l theo hng cua -e 2 + 2e3 v e2 l theo hng ca e1giai

vi

Hay

=

==T11=0, T12=-5 v T31=0

HVTH: QUNG MINH NG MSHV: 138520116004

TRNG QUC CNG MSHV: 138520116003Page 3