题目 Cau 26.Phep chieu song song bien hai duong thang song song thanh C A. Hai duong thang song song. B. Hai duong thang trung nhau C. Hai duong thang trung nhau hoac hai duong thang song song. D. JHai duong thang cheo nhau. 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
x=-3+2t Cau 36. Hinh chieu cua diem A(2:-3.5) len duong thang d y=-2+3t co toa do la D(-(31)/(14)⋅5/(14)⋅(25)/(14)) (-(10)/7,5/(14),-(25)/(14)) C(-(10)/7,-5/(14):(25)/(14)) |-(10)/7:5/(14)⋅(25)/(14) 相关知识点: 试题来源:...