... oAp AN vA l rueNc DrEM (1,25 Aiemt Vdim=-3 ,thi t=:*t Tap x6c dinh : R Gidi hqn: limr,-*_ y = + co , limrr- Jr= - ,b Su bii5n thi n: y, = ?x2 4{ - O f,,ia y'>o* f ;: - ,y:'= io U ... vd'' i'^ =ffi.r.(ffi *;+* r + t+ +ffi) '.#t=ffi(eh a) + # + + eh) x E E thi6 t ta suy Clu Tir gin VII Phuong trinh tluong thit g AB Segc = 3Snea =+ Sesc : x-y - : :1 uU dO dei AB = r,E 0ls H ' ... ti qo; vd \_ y,, +co ?.o r 2\ _*,/ ;, dr5i d6u !/ di qua x = l, n€n di6m tem d6i xring cria d6 thi ] ) y'= 2* ti6u vd I::1::"Lgu1:oc * 4mnri 3) >chi *, ri:0 c6 hai nghiQm ph6n bigt x1, x2 a':...