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Mathematics, 17.06.2021 16:20 05eviebee

Trong mặt phẳngOxy , phép quay mỗi vector quanh gốc tọa độ một góc α ngược chiều kim đồng hồ là một ánh xạ tuyến tính (Hình 1). Hãy tìm ma trận biểu diễn và biểu thức của phép quay trên. Ap dụng: Cho tam giác MNP gồm các đỉnh (1,1) M , (1,2) N , (3,3) P hãy tìm ảnh của tam giác MNP qua phép quay nói trên, biết góc quay là / 4 α = π và vẽ hình biểu diễn. b. Trình bày một ứng dụng của môn học này.

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Trong mặt phẳngOxy , phép quay mỗi vector quanh gốc tọa độ một góc α ngược chiều kim đồng hồ là một...
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