. a2 (u-a)
tu nhi6n r n0u bi6t gi6 tri g6n d[rng sau:
(t + 1X2 +J211:+V:). ..(n+,li):t,tt62x 10,0.
Bni 2. Hdy cho bi6t sO chfr s6 ctia sO B:25'oon + l}ooo'. Bni 3. Timx,y ld sO tu nhi6n thoa: (iy)" : 5M
Bni 4. Tim chir sd thap ph6n thir 1 5 sau dALr phAy cia.h2.
Bni5. Cho tam gifrcABC c6 BC:8,876 ;AC :7,765 ;AB : 6,654.
a) Tinh sO do 1dO, phtit, giAy) ciagoc BAC.
.b) Gqi G, H bn lucvt ld trong tAm vd truc tAm cira tam gi6c ABC.'linhgAn dring v6i 5 chir sO thApphAn d6 ddi c6c doan GAvitGH.
Thoi gian gui bai dtr thi: Tu, ngay 15 den 30 hang thang. Cong b6 k6t qud: Ngay B hang th6ng.
eqe6u gui!trLpoxg:
- 1 Giei NhAt m6i giai gom 01 may tinh VN-570RS + 150.000 dong + GiSy khen.
2 cl?! Nhi m6i grai g.om O1 may tinh VN-570RS + 50.000 O6ng iciSy k'hen.
- 3 Giai Ba m5igidi gom O'1 may tinh VIV-500RS + 5g ggg dong"+ Giaykhen
- 3 Giai trien vong m6r gidi ta 01 may tinh V/V-S00RS + GiSy khen.
NQldqlg bai dWthi bao gom:
- Ten, ngay thdng namsinh, diachi; Lo.p;Truo,ng.
- Lcri gidi chi tiet tr)nh bay cac quy trlnh 5n phim ro rang.
EaLoulhiun grryei
- Bang thu xin giii: coNG Ty c0 PHAN MAyTiNH DtEN TL/ vtET NAN/.
Drachi 631117 ThaiHa QuanD6ngDa HaNoi Dicnthoai,04 35378736.
- Ban g email xin gri,i: btc_hocsinhgioitoan@maytin hdrentu.com,vn
Mol thong tin ve cuoc thi va danh sach ngu,o'i trLing thu,ong se du,oc dang tai website.
WW\LmAyllU n! i eft u _co.m vn
Th i s i nlln a m_dU:eqQs tXLllplrf:
. .Dulo'c phep dung may CASIO fx-500MSvAfx-570M5 Oe tham du,cuoc thivi2 toai may nay co
gach sit dqrng vd chuc nang tuong Cucrng voi VN-SOORS vit VN-570RS. Khong duoc dung may
fx-500ES va fx-570E5, vl trinh tu' b6m phim cria dong may nay khdc vo,i V|/-500RS va Vtr/-5Z0RS
* Thdngb6ott'Bant6 chi'c:Nhdnt.dapil'ttgtot.ho'ny\ucductiarhi
sinhvodecongb6 ld'i giaicuodithi tttit
tan I *ang bdo chting toi khong th€ ddng tai hit duo;c. Vdy Ban ti chirc xin thAng b(io td.i todn the ciic ban
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Bdt ddu tir thdng I ndm 201 0, cuoc thi sd chi to ch*c tuAn website: www,nruytitthdientu.cont.vrt. Dtiy sd lit nct i cdc bqn cd thd trao dtji v6'i nhau cdc bdi todn hay,.cdc cdch giai hay vd cdi thi thudr tnay tinh, de chilng ta c6