Mathematics, 05.07.2021 16:40 smileyjesse6073
Trong mặt phẳng Oxy, phép quay mỗi vecto quanh gốc toạ độ một góc alpha ngược chiều kim đồng hồ là một ánh xạ tuyến tính . Hãy tìm ma trận biểu diễ và biểu thức của phép quay trên. Ap dụng: Cho tam giác MNP gồm các đỉnh M(1,1) , N(1,2), P(3,3) hãy tìm ảnh của tam giác MNP qua phép quay nói trên, biết góc quầy alpha=pi/4 và vẽ hình biểu diễn
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Trong mặt phẳng Oxy, phép quay mỗi vecto quanh gốc toạ độ một góc alpha ngược chiều kim đồng hồ là m...
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