Dubng thrngBcc6 phuong di.m cua Ac.
Trang 14'-TRUoNG rHPr LE xoev Ot 1'fff 1'fftl DAI HOC - f,AN fff
f::ryNurEN
Cf,u 1: Cho him s6 y = -r' + 3x2 -4 (l)
1 Khio s6t sU bii5n thi€n vi v€ <16 thi (C) cua him sO (t)
2 Chrmg minh r6ng: Mgi duong thqg qua I(l; -2).v6ihp s6 g6c k < 3 dAu cit gO thi (C) tei
ba di6m ph6n bigt trong d6 mQt diiAm h trung dii6m cria ttoan thAng n6i trai tti€m cdnl4i
Ciu2z
l Giaiphuongtrinh: tanx.tan3x a3=-2 - .
I + cos2x
2 Giii phuong trinh: !* * x ,12-x' =2.
3 Giai bAt phuong trinh: logo (9' - l).log* ,?, = j
'22
Ciu 3: Tinh tich ph6n: f = Jd+sinr.*
0
Cffu 4: Cho hinh vu6ng ABCD c6 cenh ld ali L6y H thuQc do4n AC sao cho ATI: a/2.
Kd Hx *Qng g6c vqr (ABCD) vi 6y <Ii6m S thuQc Hx sao cho g6c ,lSC Uing 45o Tinh b6n
kfnh mat cdu ngo4i ti€p S.ABCD ry,
Ciu 5:
ciai he phuong trinh: {f1 J7;)0 +
'[v' +t) =t
lzt' - yt +(l+3x212' +3x.22r * ! =2
CAU 6:
l Trong mat ph6ng vdi hq trgc to4 tlQ Oxy cho iludrng trdn (C): x ' + y' - 4x + 6y =36 .
Dudng thang A qua f(-2:.0) vi cit duong trdn t4i hai <li€m P, Q Vi6t phuong trinh cria A
sao cho doan PQ ngin nhdt.
2 Trong kh6ng gian v6i hQ tryc to4 ttQ axyz Cho A (-5; -3; 2); B(-2;0; -$;C(1; 0; -1).
Lfp phucmg trinh mat phing qua OA vi chia tti di$n OABC thanh 2 ph,an c6 t1i s6 th€
tich bAng 2 (DiCm B thu$c ph6n c6 the tich lcm hon),
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Trang 2\rnr-roNc THPT r'fl xoaY
^^-
NA- hgc 2010-2011
dudngthing !=x'
4k_"
Dt rrrr rHU DAr Hgg;l'AN rrl 7
Ban co oa"" t' n'roo inii 1oful
Thdi gian ldm bdi ttti pntii'r'0"erc thdi gian giaod€
Ciuf.
i fnao s6t vdvd dd thi him sO
*t +(m+Z)x-m co
2 Cho
! = x3 -6xz +9x '
AO tfri (c')vd duong tnAng d"v=-x'4'lfim
€lua
,, dC duong th6ng dvd
x+l
r dvir(c",)c6t nhau t4i hai di0m phdn
biet d6i ximg nhau
ar=L
ta x'e'
J-+
.)
{)
*fi
1 TinhtichPhdn/ = lG*z)' I#
2 Nhan dang
Mncbi6t: atan A + b tan B = lo +
b)tan:l-*[i]-@
3 Tinh gioi h4n J =lill
1 Giai Phuong trinh:
x-1
(.F *r)' *: i(r-'l
, )/.
)r-q;;i, j
*+&'T]t z.chohQphuonu, {f7: F=o Tim ,, eC hQ
dd cho c6 nghiQmthgc'
"uotl rrong hg truc rou uo.rrryIlS?.* #:r Dubng thrngBcc6
phuong
di.m cua Ac Tim to11O "* i* ro
^ yl.'^,!i6iolen tigh c11n6 bhne 2'
2 rrong mflt phing hefruc ;il' ;;' 'vi6t;;;;;i'ior' m[t phing (or) chira trvc oxvd t4o vdi m{t nr'a"e Wi tu o*1"9 :*n -f" * v +22 = am6t g6c oo0 '
3 Cho ttl di€.n lncp|rJno*9:* eiui z.a;,yg thang AB,CDbhng
d, g6c gifra
chirngb6nga'blftts=o'ci=l'ir"rtth€tichtirdiQnABCD'
-HCt -Hs vdt€n thi sinh: """"""""':"": """""'SO b6o danh:';"""""""
A;;O;;i thi khong gi6i thich gi th€m'
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