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huysimiz1609
2 năm trước
1) Trong mặt phẳng toạ độ Oxy, cho đường thẳng d: 3x+y-9=0. Tính phép tịnh tiến theo véctơ v có giá song song với Oy biến d thành d’ đi qua A(1;1) 2) Trong mặt phẳng toạ độ OxY, tìm phương trình đường thẳng Δ: x+2y-1=0 qua phép tịnh tiến theo véctơ v =(1;-1) giúp mình với ạ
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