I
Et KrEM
TRA cHAr LtIgNG DAUNAM
NAM HQC 2016 - 2017
MON roAN LdP 11
Thdi gian ldm bdi: 180 phtu, kh6ng ke thdi gian phat
SO GD&DT BAC NtrI.{H
TRIIOI{G TIIPT HAN THUYON
(Di c6 0l trang)
Ciu 1(1,0 di6m). Khdo siitvdvE ddthihdm
sO
(f'):
di
y=+f -+
ZL
Ciu 2 (1,0 tli6m).
Cho parabol (P.):y= x'-12m-31x+(m-I)'1 vir dulng thing
Chimg minh rdng d lu6n
d:y=7,'-**''
cit g^1t4i hai di6m phdn biQt A;B khi m thay d6i. Tim m
d6 tam
giirc OAB vudng t4i O (vdt O ld g6c tqa dQ).
Ciu
ili6m).
,4 =l. Lno slnd
3 (1,0
I
2. BiCt
voi
900
<1800. Tinh tancr'
I
sina + cosa = m. Tinhgid tri bitiu thtic:
Ciu
4 (1,0 tti6m). Gidi b6t phuong
c6u
5 (1,0 tli6m). Gi6i hQ phuong
=
sina+cosa
a
sina-cosu tan'a-l
sii?
l' -21'
trinh: x'-5x+6
,r3
" tririh:
- n = aw
+
l!,zt
I(4x + 5)(Y-5)
{<,1"x
= 41Y
./2.-
Ciu 6 (1,0 tli6m).
M
c;lia
Cho tam giric ABC co AB = a;BC
=2a;
g6c BAC =120'.LAy trung di6m
AC. Tinh d0 ditl AM;BM ,tu il6 nOu nhfln xdt vd hinh dqng ram giitc ABM
.
CAu 7 (1,0 tli€m). Gi6i phuong trinh:
Ciu
8 (2,0 tli6m). Trong h€ tqa d0 Oxy cho tam giiic
ABC dilth l(-3;4) noi d6p dudng trdn
(C) tam 1(1;7) . Phuong trinh dudng phdn gi6c trong g6c A lit d : x + y -1 = 0 .
Ciu
A)lit
1.
Vi6tphuong trinh (C). Timtqad0
z.
Bi6t dG;BC) = a.d(l;BC), vi6t phucrng trinh duong thing ,BC '
9 (1,0 tli6m). Cho c6c st5 thpc dtong a;b;c . Tim gi6
- a+3c c+3a
y=-+-+-
giaodi6m cua
d vd (C).
tri nh6 nhdt ctra bi€u thric
4b
a+b b+c c+a
--------- HET ---------Thi sinh khOng tluqc
sr?
dgng tiri liQu. Cr{n bQ coi thi khOnb giAi thich gi th6m.
Ho vir t€n thi sinh :...........
'
50GD) i)l:,..;TRTTO\'G
.-.
:.-..
.. ...1
ttlU\trU.\\(i,l
,
Ei
TIPT F!\.\ TiJL'i.T
hJE.U TRA
CIi.\T LL'I'J\L;
|
D
\L'.\ i.\I
NAII rIQC 2016-?0r:
ilIo|i: ToiN 1:
Ciu
I
NQi dung-ddp
eff
l.+) DK: n> 2;n
.
khi d6
C"z
in
Di€m
02s
=90€r?=10
02s
-24 =361872O
2.+) f (x)=2cos2r-sinx
02s
+)f {r):z
03s
+) P,,
tr
+)
f
(r) = 3mxz -
+)m=0. tac6
6x +
m> o,vx e R
f (x)=-6x;
0,2s
02s
"f'(t)>-0 <=x<0(loai)
-r)m+u.;
0'5
r1r)
EI
+)
>
o,
vr
e .n
1
f (r) = ------i(x
+
=
o o. . <.6
"
a2s
2)'
+; M (ro ; yo ( xo
)
* -2 ) h titip di€m cria tiiSp tuy6n.
0,25it
=-1'+Yo=4
lxo =-l=yo =-19
f'(x^\=-7 <>l
+)ro =
+) ro
-f
;
ro
plg66g trinh tiiip
nry6n :
!
= - 7x - 3
0ts
=-f ;pttty= -7x-31
IV
0,25
(J, *z -zl(J-*z *z\
\
,f\'
/
!\I-l;-
'
- {l : : * {^ ={:r:,=, * {_si.'
'+2 (x2 + 5.r
- l4)lJ.r
+2+
0,25
2)
t:?
= linr ---- L-----'" (x-2)(x +1)lJx+z+z)'-:(x+7)(J.r+2
--
*1 = 1;*
+z)
I
0'5
0,25
JO
v
7:0
+)c1i M (4n -7;n) e AB gld'z = (am -7\t + *, = 5 e 17mz - 56m + 44 = 0
=
+) phuong trinh tludng thing qua 2 ditim A, B lex
-4y+
0,5
0'5