on rnr ruAo sAr cnAr IUQNc vAo LoP SO GD&DT THAI NCUYT,N TRTIONG THPT CrrUYfiN nnON NSdy thi: (DA thi Ciu gi* I5 thdng ndm 2016 Thdi gian ldm bdi: 150 Philt trang) "o vAr ri 10 1: (1.5 tli6m) Luc / gro sang mQt nguoi di xe d4p tli tu di6m A, du6i theo mQt nguoi 10km CA hai chuy6n d0ng lfc a) Hai ngudi gpp thing d6u v6i cdct6c dang B, c6ch tuong img ld lztun/hvd 4km/h Vi tri gilpnhau c5ch A bao nhi6u km? m6y gio? b) Chgn g6c thcri gian (thdi di6m t dQ ...Ciu 4: (2 tli6m) Cho mpch diQn nhu hinh vE Rr:4 f) ; R.2:15 f) ; &:10f) ; Ra:7,5 f) ; Rs:30 O EiQn tr& ctia... d6i Khi d6ng kh6a K, ampe k6 chi 1A H5y x5c dinh sO chi cria ampe tti t