Cau 10: Vié phuong trinh chinh tac cua duong thang A di qua diem A (3; -1; -4) ca true Oy và C song song voi mat phang (P): 2x + y=0. A.(x-3)/(-3)=(y-1)/6=(z+4)/4 B.(x-3)/(-3)=(y+1)/6=(z+4)/(-4) C. (x-3)/(-3)=(y+1)/6=(z+4)/4-...
Cau 6. Trong khong gian voi hè toa do Oxyz, vièt phuong trinh chinh tac cua mǎt cau co duong kinh AB voi A(2: 1: 0), B(0: 1: 2). C A. (x+1)^2+(y+1)^2+(z+1)^2=2 B. (x+1)^2+(y+1)^2+(z+1)^2=4 C. (x-1)^2+(y-1)^2+(z-1)^2=2 . D. ...
Nguyen Van Trinh ),Sangyup Lee ) 摘要: In order to meet the target of economic development in the future, Vietnam needs to speed up the political reformation, continue to develop the government of people, for the people and by people, develop the government system basing on the ...