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Trong không gian với hệ tọa độ Oxyz,cho đường thẳng d_1 có vector chỉ phương
6 months ago
67
Trong không gian với hệ tọa độ Oxyz,cho đường thẳng d_1 có vector chỉ phương
u ⃗=(1;0;-2) và đi qua điểm M(1;-3;2),d_2=(x+3)/1=(y-1)/(-2)=(z+4)/3
Phương trình mặt phẳng (P) cách đều hai đường thẳng d_1 và d_2
có dạng ax+by+cz+11=0.Giá trị a+2b+3c bằng
#HinhHocKhongGianOxyz
#OxyzGeometry
#CachGiai
#ToanLop12
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