chrlp khi Tdng biOn tflp dring 52 tudi) :
l) Trdn Tidn Hodng, 11 To6n, THPT chuy0n Le Qui DOn, Qu6ng Tri
\ Le Qu! Lqi, 98, THCS Nguy6n Thugng Hi0n, HI Tiy.
3) Phqm Thi Quynh Trang,K24C, khoa To6n,
DHSP Hh NQi Il.
4) Vaong Quang Trpng,l0A, THPT thi xtr Ldo Cai, Llo Cai.
5) Hodng Thao, l0Al, THPT TuQ Tinh, Cdm Gitrng, Hli Duong
6) LA Anh Vfr, ll{2, THPT chuyen LC Qui DOn, Dd Nflng
7) Nguy€n Minh Htti,10T2, THPT NK Qutng
Binh
8) Cao Vifi Dang, 11B3, TTIPT Nhi Chidu,
Phf Thf, Kinh MOn, H[i Dunng. Cdn dty lI ldi c5c bnn trung giAi :
- "Rdt kh6 kh6n vh diy bft ngd" (Nguydn Minh Hdi)
- "That h6c bfa nhtmg ctng thflt thtr vi (Hodng
Thao)
- "Tuy kh6 nhung rdt bd ich" (Vaong Quang
Trpng).
Bi quydt do6n dring tudi drrqc ban Trdn Tidn
Hodng "tidt lo" : "Nhd mot ban do6n ltr 47, b6 do6n 56 nOn em ldy trung binh cQng 14... 52 !"
That lh "con nhtr toAn c6 khAc.
Clm on t{t ch cdc ban vX... h6y cing tham gia cuQc choi th6ng nhy.
I cLB
24
sao mh tdn tpi dugc !" That lA chi ti ph6i khOng c6c b4n ? Ndu cfc
b4n bi6t thOm cdc sd 6o thi lai phAi giflt minh
dfy ! Khi d6 kdt qu[ thrl nhdt se dfng, cdn c6ch
ldm thrl hai v6n sai vi dt c6 ck cilc sd Ao thi tir c2 + a + 1= 0 ciing khOng thd suy tz a = I.
KhOng hidu thdi... 1981, ddp 6n cria btri thi ntry
se nhu thd ndo ?
B1n Pham Thi QuyAn (To6n - Tin, Cao dtng Su phnm Nam Dfnh) rdt ttli vi khi tdm sg : "Bdi
to6n que lh mQt ldi nh{c nhir li thf, c6c ban hqc
sinh chring ta hay bi qud nhipt huydt ldm toAn mA
khOng tinh t6o nOn mdc sai ldm". Ban Ddo Minh
Ldm,l2E, THPT Nhu Thanh, Thanh H6a da giAi bhi to6n tron tap sd phtrc C (R c C) dd khfrng dinh tdng li -1 vI cho ring trCn Bp sd phrrc thi
bli to6n hodn totrn binh thrdng.
RiOng KIHIVI xin btrn thOm : "T6c gil d0 to6n cdng bi qud nhiQt huydt d€l mric quOn rIng 0
phd thOng chn hgc ddn sd to". Ctrm on c6c b4n. KIHIVI
sdHdqi xnoruq r
Bii tor{n: Tdn tpi hay kh6ng htrm sd liOn tuc
f :,R -+ R sao cho khi x v0 ti thi /(x) nh0n gi6 tri h(ru ti, cbn khi x hrlu ti thi/("r) nhfln gi6 tri v0 ti ?
Lrli giii. Gitr sfi tdn tai hhm s6/ th6a mxn bii
to6n. Xet {xr} gdm cdc sd v0 ti v) lim.r,? - "ro lh n-++a
sd hrru ti. Do/liOn tgc trOn R nOn lirn/(-rr) =/(.ro)
ll-)+a
vdriflxo) ltr sd v0 ti. Nhung x, v0 ti nOn/(xn) hiru
ti, suy *,lTJr") ll sd huu ti. V0y.f(xo) vua ld
sd v0 ti, vria lI sd huu ti nOn mtu thu6n. Chttng
td khong tdn tai/th6a mxn bhi lodn.
Bpn thfy ldi gili trOn c6 so h0 gi khOng ? Ndu
so h& thi b4n c6 thd giii quydt Ual to6n kcn nhu
thdntro? , r
TRAN NGOC THANG(SV K50, Khoa Todn - Tin, DHSP Ha NOi) (SV K50, Khoa Todn - Tin, DHSP Ha NOi)
F
I(ET OUA NAO... SAI ?
T{t c\, c6c ban ddu
chi ra rlng : "Lbm gi
Ket qud DIN VAO 0 fndxC
HAu h0t ctrc
birn ddu thay
"ngt)n" qud vi
didn rluoc ngay
vtr gui cfch didn di ngay. Thd thi... llrn sao dugc thudng '! lJan LA Kltdnh Phi, 11A6, THPT 1,0 Hodn, 'l'he Xu0n, Tlranh H6a dX liCt k0 d$ 233 cfch diOn. Birn Thdi Duy Hung,
('l'ofin R, K33,
DHSP Th6i
NguyOn) "choi"
duqc 70 c:6ch. Xin trao ting
phdrn cho 2 ban vd gidi thi0u mOt chft ... dfp itn. Cirrn ryn c6c han rSGOC MAI Vi*-\ SiV G#g =V?
HIr r..p J tr r.ur)ng da c6 llriu vdo 4 0 triing Sil(r r'hr, ntiru -\iic trong hinit hop lOgic.
Effitr f
B
Kot qui : BAI roAN CHrA o,{r
Nhidu ban chua nhin thay ao bao gid vfur h6 hdi girip anh nOng dAn diro ao. Chi cin bi0t kien
thric v0 diOn tich rnQt chrit li cti thd sdns tao ra rrQt sd kidu sau cliy :
Kiiu l. Til 1/ ke A
durng thing song song I
vtti in cdr ac,al cr ,i ,l
chon P lhuoc do4l! I
ilrang Pl), chon M^ |thuQc donn thing .I/C I thuQc donn thing .I/C I tlti ttrgiiic 7I1P':'QM:" t't\ ;
PP*B
MM*CdiQn tich bing di0n diQn tich bing di0n
tich tri gi6c NPQM vi rlfng blng nUa dien tich
fhr.ra ruQng h)n} vuOng ABCD. Nhu viy, doi vrii
kiiu I tll crl v0 sd cich rlio ao thcla rnxn nguy,rin vong cria anll nOns cltrn.
Kidu 2. Neu PIJ<MC
thi gqri P'li hinh chiiu
vuOng g6c ctia P lren
DC thi cdi ao cdn dlo
1I trinli trl gi6c NPBP'
Cdn rnQt vtri criclr
khdc nira, nhurrg duu
thtr cho iurh nt)ng dan,
gilng mai mtr anh ay chi hidu phti ltrm the n)o, ching han c6 b;Ln "thafir n]uu" : Iay G ftuQc l/C
sao cho khotrng c6ch tir G d6,n BC ddng birng
''\A'PB t?l Cfc ban ncrr rrhtf la bli toin thuc ri
BC
thi cung phhi cho k)i giii thuc ti nh6 | Xin cirrn
rvrt va "hiu tir" it lac, biip vua lhu hoircrh dutTer c:ho
btr PlrtLrrr Trong Hidu, 11,\1, khtii phri thOng chu,ven Toin - 'l'in, I)ai hoc Su pham Virrh.
ANH HAI LOA
NHI.JNG CON SO. DEP
C6c bnn tlrtr kidm fra xem :
153 = 13 .l 53 + 3:l
l.iQu c6 con sd nlo c6 3 chrl sd c0ng rlep nhu thO khOng ? Cic b+n cdn suy tu gi lhOrn vd varr dd ntrY kho,g
' *GUYEN vAN TH'EM
q*i G p tn+;e ;e I bt*a*, DA G^S. 7.! N,quld n V i A n'l' ho
Hipu tnfi'ng DH HuA'
thOng 3 ndmI igs7, vi6n Doi I igs7, vi6n Doi
hq. Hud duoc
thanh lap g6m 4
phan khoo dot hoc
: Su phom, Khoo
hg., Vdn Khoo,
Ludt Khoo. NomI 959-l 960 c6 I 959-l 960 c6 th6m phdn khoo Y Khoo. Thoi ki ndy
cdn c6 Vien Hdn
hoc vd cdc trudng
I HOC HUE
chfc, tri xo... Tdng sd cdn b6 cong ch';c adn
1.600 ngudi, trong do tr6n l l00 ld c6n b6
gidng dqy vo nghi6n cvv, 457o cdn b6 gl6ng
iqy ia nlhien cuu c6 trinh d6 thoc sT, tiSn sT,
ti6n sT khoo hoc, pho gloo su, gido su... Trong DH Hud c6 Khdi phd th6ng chuy6n
To6n thu6c trudng DH Khoo hoc, tuydn sinh t0
,l995,
hi6n co 82 hoc sinh c0o cdc lo'p ,l0,
I l,
12. Da c6 hoc sinh dooi gioi Toon qu6c gio, vd
hdng ndm 1 00% hoc sinh cOo khOi thi d6 Doi hoc.
Doi hoc Hud ld m6i trong nhong trung tdm ddo ioo, nghi6n cOu, gioo luu khoo hoc, gido duc vd vAn h5o l6n cOo mi6n Trung. Doi hoc
Hud da tridn khoi 74 nhi6m vu co bdn cdp Nhd
nvlc, 322 d6 tOi cop 86, ddng coi td chOc
nhi6u h6i nghi, h6i thoo qu6t gio, qudc td... Nhidu d6 tal do dugc hodn thdnh vd nghi6m
thu vdi chdt luqng tdt. MQt sd d6 tdi duo'.c
chuydn gioo fng dung vdo sdn xudi.vd doisdng dot hi6u qud coo. Doi hoc HuO dd c6 sdng dot hi6u qud coo. Doi hoc HuO dd c6
qron he hop tdc qu6c tdv6i ir6n 50 truo'ng doi hoc, vi6n nghi6n cOu vd c6c id ch(tc khdc tr6n
thd gio'i. D0 thuc hien tren 100 chuo'ng trinh dv
dn 6op tdc nghi6n cfu khoo hoc thu6c nhi6u
l-t
llnn vuc...
Trong dinh hr-rong chien luo'c phdt tridn gioi doon 2OO0-20,l0, Doi hoc Hud ld m6t doi hoc
do ngdnh, c6 phuo'ng ihOc ddo too do dong
vdi h6 thdng ngdnh nghe phong phO mong ddc
trung c0o khu vuc, nhom doo too d6i ngU c6n bO k-hoo hoc vd c6n b6 quon li co trinh d6 coo
cho ddt nudc, c6 khA nong gioo luu hcvp t6c b6n ngodi, co khd nong g<ln kdt gioo nghi6n
cOu khoo hoc co bdn vd c6ng ngh6, gioo nghien cOu voi Ong dung nhAm dap Ong toi n[cit cho su nghi6p c6ng nghi6p h6o, hien doi
h6o ddt nu6c.
Coo ddng chuy6n m6n truc thu6c : Nghethudt, N0 h6 sinh Qudc gio vd Trudng c6n su thudt, N0 h6 sinh Qudc gio vd Trudng c6n su
Y td vd Di6u dudng.
Theo Nght dinh 30/CP ngdy 4 thdng 4ndm I99tl(to Chinh phO nuoc C6ng hoo xd ndm I99tl(to Chinh phO nuoc C6ng hoo xd
hoi chO nghio Viet Nom, dd hqi nhqp vdi xu
thd phdt tiidn cOo n6n qido duc doi hoc coc
nuoc ti6n tiSn tr6n thd gio'i Doi hoc Hud duoc
thdnh ldp nhu m6t doi hoc vUng tr6n co sd
hop nhdt cdc trudng doi hoc tr6n dio bdn
thdnh phd Hud. Hien noy Doi hgc HuO c6 5 trudng thdnh vi6n : Doi hoc Su phom, Doi hoc
Khoo hoc, Doi hoc Y Khoo, Doi hoc N6ng Ldm, Dqi hoc Ngh6 thu6t vd Khoo Kinh td (truc
thu6c). Ngodi ro'cdn c6 : Trung t6m Ddo too
tti xo, Trung tdm Khoo hoc xo h6i vd Nhdn
vdn, Trung tdm Tdi nguy6n m6i truong vd
Cdng ngh6 sinh hoc, Trung tOm Phdn tich,
Trung t6m Gido duc thd ch&, Trung tdm gi6o
dqrc qu6c phdng, Trung tdm C6ng ngh6 th6ng
iin vd Trung tdm Ddo too Qudc t5.
Doi hoc Hud lo m6t doi hoc do ngdnh, hi6n
dong c6 59 ngdnh ddo too c0 nhdn, 42
ngonh ddo too thoc sT, 9 ngdnh ddo too
tren st.
Hi6n nov Doi hoc Hud c6 tr6n 42000 sinh
vi6n boo g6m coc'hc dao too chinh quy, toi
ISN : 0866-0853 Cha bnn tai Tba soan
Chi s6 : 12884 In tai Nhd miy in Di6n Hbng, ng6 18? ph6 Giing Vo Gi6 : 3.OO0d ME si5 : 8BT89NII In xong