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Hieubeodepzai
2 năm trước
Điền Đ vào câu đúng, S vào câu sai a. Trong một tam giác, góc nhỏ nhất là góc nhọn. b. Trong một tam giác vuông, hai góc nhọn bù nhau. c. Nếu góc A là góc ở đáy của một tam giác cân thì góc A < 900 d. Cho hàng số y = f(x) = 2x điểm nào thuộc đồ thị của hàm số f(x) A (0; 0) B (1; 3 ) C (½; -1 ) D (½; 1)
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