Cau 19:Cho phuong trinh chinh tac cua duong tron (C): (x-a)^2+(y-b)^2=R^2Khang dinh nao dung? C A. tam I(- a.-b) ban kinh R. B. tam I( a. b) ban kinh R2. C. tam I( a. b) ban kinh R D. tam I ( a.-b) ban kinh R . ...
Cau 6: Cho diem M(v ) thuoe duong tron ( C ) tam I(.b). Phuong trinh uep tuyen A cua duong tron (C) tai diem M la C A.(x-a)(x+x)+(v-b)(x+v)=0 B. (v_c+u)/(i-r_0)+(1_0+h)(1-η_0)=0 C. (x_0-a_1(x-x_1)+(1-b)(1-i)(1+i) D.(x+...
Cau 19. Duong tron(C) co tam I(-2;3) va di qua M(2;-3) co phuong trinh la: D A. (x+2)^2+(y-3)^2=√(52) B. (x-2)^2+(y+3)^2=52 . C. x^2+y^2+4x-6y-57=0 . D. x^2+y^2+4x-6y-39=0 相关知识点: 试题来源: 解析 DLời giải.. ...
Cau 19. Trong mat phang Oxycho(C):(x-2)^2+(y-1)^2=4 iet phuong trinh tiep tuyen cua duong tron (C), biet tiep tuyen song song voi d : 4z - 3y - 5 = 0. A 3r +4y-1=0 hoac 3r +4y-21 =0. B. 4r- 3y-1-0 hoac 4z- 3y + 21-0. C 4r-3y-1-0 hoac ...