Hinh chilu cta C' tr6n mpABC trung vni tdm c ua dity.Bi6t OC'= ali.
Trang 1sdcHoogc.oAor4onAxQr Ar^ XfnU TRA HQC rci ff 1y1fiN TOAN 11 TRITONG TnpT DOAI\ rEr- Tr T NA TNTNC
Nim hgc: 2016-2017
Thdi gian lim bii : 90 phfit.
MA OB TTq
|Oi tni gim cd 04 trang)
Hg vi t6n: fofit.r)fr"1 o 4 tttu,1q '; s6 ueo danh
A- TRAc NGHTEM (7,0 di6m):
cau 1
' Tirh ,trrr- '+| t
x-+ t3 )y_p lt
33
Tim t6t cir circ gi|tri cria m oe rram so 71x; =
Il*,'*' , ;; ; = ; [6n tuc t4i
di6m x: 3:
A m:3 B m:l C m:l vd m:-1 D *: 6
cnu 3'
cho [(rr- l)"lrx+t)' =ffi rinh a=m*n?
'Cdu 4: Cho lang tr.u ABC.A'B'C' co dity ABC ld tam gi6c d6u tdm O cqnh a Hinh
chi(lu cta C' tr6n mp(ABC) trung vni tdm c ua dity.Bi6t OC'= ali G6c t4o b&i
canh b6n vd m{t ddy ciatet g ttU bing:
A 600 B arctan3 C 300 D arctanJ6
Ciu 5 : Trong cdc ddy sO cho boi s6 h4ng t6ng qu6t du6i ddy, ddy s6 ndo kh6ng ph6i ld
^A^6
c6p s6 cQng?
-)n t-l
A iln=2n +5 B u^=+ ) , C (3n+l)2 -9n2 D u,=4n-5
CAu 6 t
cho a ld hing so cioi hpn ndo sau day c6 gi6 tribing ' "2 ! ?
A fim(ln'+4n2-5an-l) '2 ' B lin1frf asn+2-11
3 + a.5' an' - 4n+2a
C v' ""' lim_ 4n+l +2,5n*t _ D Ilm- 2(rt -3n+4)
cda7 t si6t
IY;(F-2 +-Jr.r)=ftt"oi i toisian).H6i gi6 fr a.b bar,e bao nhi6u?
A -26 B -6 C -72 D -10
CAuS : fi6p tuy6n cria d6 thi hdm sO y= -x' +4x+7 tai di6m A(-1; 2) c6hQ s6 g6c