Đề TS lớp 10 2012-2013 An Giang

so crao DUC
vn nAo
r4o
of rnr ruyfx
srNH
vAo
r,dr
to
Nim hgc
2012
-
2013
Mdn:
TOAN
Kh6a
ngiy ll-7-2012
.(,
Thdi
gian
ldm
bdi :120
phrrit
(Khdng
t<6 tfrdi
gian ph6t
de)
AN GIANG
BT CniNH
TIIffc
Bii 1:
(2,5

tli6m)
:
a)
Rft
go.n
A
=
Zffi
-
6i5
+
iT6.
."
b)
Giai
phuong
trinh bflc hw: x2
-
2^l7x
*
1
=
0.
c) Gi6i hQ
phucrng
trinh
:
{3*-7:7
lZx+!=3
Biri 2:

(2,0
tti6m)
Cho
him s6
y
=
x
+
L
(*)
c6 dO thi ld tluong
thing
(d).
a) Tim h€
sO
g6c
vd vC dO
thi
hem
s6
(*).
b) Ttm
a d6 Parabol
(P):
y
=
axz di
qua
di6m
M(1;

2).X6cctinh
tga etQ giao
di6m
crla
dudrng thi"e
(d)
va Parabol
(P)
vdi
a
viatim
dugc.
Bii 3:
(2,0
di6m)
Chophuongtrinh
6n x :,f
-
2(m
+
I)x
*
m2
* 3
=
0
a) Vdi
gi6
tri ndo bria
mthlphuong

trinh
c6 hai nghiQm
phen
biQt.
b) Tim
m d|,phucrng trinh
c6
hai
nghiQm
th6a
tich
hai nghiQm
kh0ng
l6n
hon
t6ng
hai
nghi$m.
Bdri 4:
(3,5
ili6m)
Cho
dudrng
trdn
(O)
bdn
kinh R
=
3cmvd mQt
di6m

I nim
ngodi
dudrng
trdn,
bi6t rang
Ol
=
4cm.
Ttr I
kd
hai ti6p
tuyiSn
IA vi IB vdi
etudrng
trdn
(A,
B ld ti6p
Ai6m1.
a)
Chtmg
minh
tA
giftc
OAIB nQi
tiiip.
.b)
Ttr I
kd
dudrng th&ng
vu6ng

g6c
voi OI cat
tia
OA
tai o'.
Tinh
oO'
vd
di€n
tich tam.
gi6c
IOO'.
c)
Tir O'ke
O'C
r,u$ng
g6c
BI
cit
duimg th8oe
BI
tai
C. Chfmg
minh
reng
O't ld
tia
phen
gidc
ota tre.

,H6t