,:' t:-
i Khoa Vst Li 2A07 ;
Ed ttri mon: Lf thuydt Nh6m -')'- ' I
Thdi gian: L20'
ft I tl
ll
, lr I I I
l.Chomatrf,nA= +l I 1 r I Havrimtri ri6ngvicdcvectdri6ngtnJc
J L- -')
rRr^
chu6n cfia rna trf;n tr6n.
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2. cho nh6rn G la 6p hgp ci{c ph6p quay rrong mit phfing quanh g6'c o m6t
g6cli0;Q< 0 <2n.
: :l
a. HIy tim bidu di6n cfia nh6m cludi d?ng ma rr6n ZxZ :
b. Hry clua bi{u di6n vd clang rdng ftuc tidp cria cdc bidu di6n ba't kh6 quy.
3. X6t phdn tfr gdnr 3 cip nguy6n.tfi kh6c nhau. PhAn tir tr-Cn r4o thdnh hinh
tdm nrdt (b6t di6n) vdi c6c tinh cl6i xfrng sau: quay m6t g6c n quanh truc x;
t*rc y; rruc z thi phf,' tfr kh6ng thay cldi hirh dang
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----
-i
-
-
a. Hry chfrng nrinh rhng cilc ph6p quay tr'6n tao thinh nh6rn D2
b. Hay tirn bidrr di6n gfia nh6m cltrdi ctang ma tr{n:3 x 3 .
Thi sirth lcltittg cltgc sft tlqng tdi liQu