[r]
(1)lci, rm cHQN rrQC sINrI GrgI q+P riNn r,6v tz NAm Hqc 2at3 -zot4
vrdx : roAN 1rqc
Thdi gian; 18A ph*t (Kh1ng kA thdi gian giao dQ)
NgirY thi: 15/10 1201,3
(DA thi gdm c6 01 trang)
Bni 1: (a diem)
Cho hAm s6 y = 4 (C) Gei / li giao di6rn hai dulng tiQm cpn c{ra
x-I
(C) frOi gri6 tr! n.to ci.ra m , dubngthang ! = -x + n c*t (C) tAi hai di6m phan biqt l,,B vlrtam gi6c IAB dbu
Bii 2: (6 di6*21
r t /<- \
1) Giai phuo'rrg trinh: scor[zr rt)= 4sint'*-"]- e'
lO;.y*.lz*+y=+
Z) Giei hC phucrng trinh: I '
r -:-lz,,lzx+y-J5x+8=2 B$ri 3: ,.4 didnit
Cho tam gi6a ABC kh0ng dAu thoa mdn a2 = 4,S'cot l, trong d6 BC - a vd
S ln dign rich tarp gi6c ABC Gpi O r,ir G theo thir tU lir t6m duong tron ngopi titip vir trqng t6m tam gi6c ABC Tfnh g6c gifi'a hai clulng thing AG vd OG '
Bii 4: (3 di€m)
Cho d6y *O {r,} xdc dinh nhu sau:
l;
X, = rl J, X,nt = T[+rr-rt (ne N.) ri* Jl*
"'.
*xn Bli 5: Q di1m)
Cho x,y,z ld c6c s6 tnpc duongthay ddi th6amdn x+y*z=3 Tim gi6 tri lon nh6t cua biOu thirc : P =
ffigr W# u U#u,
UBND T'INH THAI NGUYEN
so Grao pvc & DAO r*O BT CNiNrr THUC