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arcticsmile
2 năm trước
1.Phương trình sin x/2 = m có nghiệm khi và chỉ khi: (giầi giúp mình nha) 2. Tím tất cả cá giá trị của tham số m để phương trình √3.cosx+m-1 = 0 có nghiệm? Tk very much
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