XSAO SAr CTAT T,UONG CUOI NATVT Ndm hgc 2016.. TrOn ctng mQt nria mat phang bd chfa tia Ox vE hai tia Oy.[r]
Trang 1PHONG GD & DT NGHi,t NAN ON XSAO SAr CTAT T,UONG CUOI NATVT
Ndm hgc 2016 - 2017 Mdn: Todn 6 Thdi gian tdm bdi; 90 phut ( khong k€ thoi gian giao di1
of cuirur rnr/c
Ciu 1: Q,A di6m) Thuc hi6n c6c phdp tinh:
a)s-7+2 b):-: -/ 3 3 c)2.(-3)+4.2 d)l-i,; ' \ / '\5/
3
Qiu 2: (2,5 di€m)
,.^ 3 I
a)Ilmx,blet:*- +:t
b) Tim s6 tu nhi6n a nh6 ntrAt mac 0, bii5t rdng a i8 vir a:.I2,
\,-\A
c) rrm so nguydn xthda mdn: t?(+-:'l 3\5 2) = =+(+.i-:j 11\s 3 2)
Cfiu 3: (1,5 di€m) TOng k6t nAm hgc ba l6p 6A, 68, 6C co 45 em d4t hqc sinh gioi
nKt r 1 ' 1 'A /.t ' "iLll
56 hpc sinh gioi cua l6p 64 bdng I tdng sd hgc sinh.1'Sb.hgc sinh gioi cua lcrp 68 bang 120%sO hgc sinh'bria lop 6A Tinh s6 h9 sinh gioi cua m5i l6p
Ciu 4: (3,0 di€m) TrOn ctng mQt nria mat phang bd chfa tia Ox vE hai tia Oy vdOz
sao cho lxOy:600, lxOz: 1200
a Trong ba tia Ox, Oy vdOztia ndo nim gifa hai tia con l4i ? Vi sao ?
b Tia Oy co phii li tia ph6n gi6c cria g6c xOz kh6ng ? Vi sao ?
c Ggi tia Ot ld tia d6i cria tia Oy Tinh sO do goc kA bu v6i gocyOz?
Ciu 5: (0,5 di€m) Cho p vd p + 4ld cdc sd nguyOn td( p > 3) .
Chung minh rang p + 8 ld hqp sO
n6t
Ho vd t€n th{ sinh , T.e.(t 11.e !.,.!, * t.1 81r r6 bdo danh C{::Q .
(Cdn bQ coi thi khhng girti thich gi thA@