... PNưTHANGIM THIIHC NMHC2013 2014 LN MễN:TONKhi B,D (ỏpỏnư thangimgm5 trang) Cõu (2,0 im) ỏpỏn i m 1.(1,0 im) Khi m =1 hms(1)cúdng y = x + x +1 a)Tpxỏcnh D = Ă b)Sbinthiờn +)Chiubinthiờn: y  = ... m =0.Tgithit d ( A ( P ) )=3 ( ) -2 + 4+ m = m + = m = m = -11 + +1 0,25 Vy ( P ) : x + y + z + =0 hoc ( P ) : x + y + z - 11 =0 9.b (1,0 im) 0,25 Gi z = a + bi , ( a ,b ẻ Ă).Tgithit z + ... bintrờnkhong ( + Ơ). ư+)Cctr:Hmstcctiuti x = 0, yCT =1 +)Giihn: lim y = lim y = +Ơ x đ-Ơ +)Bngbinthiờn: x -Ơ y 0,25 xđ+Ơ - +Ơ 0 + +Ơ +Ơ 0,25 y th:Nhnxột:hmsóchol (hcsinhtvth) hmschnnờnthnhntrctungltrcixng....