TRIJONG DHSP TP.
Trang 1TRIJONG DHSP TP HCM KHoA vAr rY
De thi chfnh thric
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Hqc phan : Dai s6 2 FIqc kj' 2, ndm hoc 2006 _ 2007
Lop Cri nhdn vat ly
Thdi gian: 90 phrit nr
1 til
,-1,;13
,-".4
'l ::
j
'I
Qt ert,*)' =
l-\ l
I '!\i-::
rl r i;;,;{- q
;- cffu l: Nhfn dang vd bi6u di6n ducrng bdc 2 c6 phuong trinh:
5 x2 +26xy+5y, _3ali.x _zJi.y_86
= 0
trong hQ tga dQ EA-cdc vu6ng g6c Oxy
CAu 2: Xdt hc tea dQ parabolic (!y9) vtti )F A 6
L-) y = {rTsinQ
l, =;{,'-,')
trong d6 € 0, rr>0, 0< Q <2nvd (x, y, z)rithQ tga d6 D6-c6c vu6ng g6c
a chring minh h6 tga d6 parabolic (€,n,d)tryc giao
b' riq ,i: r'e
'@4,d,sn* ,i utpbeq -tErnatsrrarretp d6.:
Jaraholic
c vict uieu *fr"6A^,@i.ong he tea dQ parabolic crrra trudng v6
hudng a vitvects 7 cffu 3: ?inh nghia vd dua ra mQt s6 vi du v6 tenxo hiQp bi€n vd phan bi6n hang nh6t
^ Cdu 4:
% a) chtmgminhtOphqpcdcmatr6nv'6n gcepl codpng:l -[o o t cl *,**'* #
o ,)
l0p thdnh m6t nh6m con (nh6m Heisenbe rg Hr) cua nh6m sL(3,R) b oo
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b
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Y
,r
a
" 3Jf L"ffii'*ffi?,o;;:i,',tT,'1, ft Ifi ilThH riliTf uu'; *
Ghi chri: - Sinh vi6n kh6ng tluqc sfr dgng tii liQu
13 qt{-&f