Tiêu đề HSG 9 - 2018 - de Toan.PDF ✅

UBND HUYE. N THANG BiNH PHdNG GrAo DUc vA oAo r+o of cniNH rgrtc Chur. (3,0 didm) Ki'rHr cHeN Hec srNH Gror L6? 9 Nim hoc: 2018 - 2019 Ngdy thi: 24/10/2018 Mdn: TOAN Thdi gian lim bii: l5O ph{t (kh6ng tinh thdi gian giao dA) cho biduthric, =( -:-.;),, f .1, (vdi 0<.r;c l). \x-Vx 'lx-t) (J;-r)' a) Rft gqn bi6u thirc P. b) Tim gi6 tri l