eo cIAo DUC VA DAO tAO Hq ud t€n th{' s'.i'nh:
KV THI TUYfiN SINH SAU DAI HqC NAM zoLz (Dqt 1)
Mon thi: TOAN CAO CAP tlt Dd,nh cho: CAO HQC
Thdi gian lbm bb,i: 180 Phitt
cdu 1- Giei hQ phuong trinh sau tr€n trudng s6 thuc'
( 2 * * 2 Y - z - 4 { 4 r * 3 y - z - 6
t 8 r * 5 Y - 3 2 : \ 4 '
CAu 2 ph6t bi6u di€u kiQn c6n vh, dt dii b6n didm trong khdng gian c6 tqa dO ('r,ar, zt), (rz,az' zz) '
(rr,Yr, zs), ('n',Un,za) d6ng Ph&ng'
Cdu 3
a Srl dung quy t6c L'Hospital dd tfnh gi6i hpn sau:
,^e"' - Lr- 12
.
fr-b Tinh tich Phh,n suY rOng
f+- r2dr
l
-Cdq 4 Tim *- o r "e !., o a ,,ong d6 z thbam6n:
r B + y 3 + 2 3 + 6 r y z - L '
Cdu 5
a fim nghiQm t6ng qu6t ctra phrrong trinh sau: y" -2a'+5a: cost'
o o 1
b Tlm rnidn hOi tu ctra chu6i hir'm ,,A@ + 1) '
n:\
Ghi chir z Cd,n b0 coi thi, kh'Ang gidi' th('ch gi' th'€m'
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