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Lepyc1
2 năm trước
câu 1:cho A= (Z-2)/z B=(4z)/(z+1)+ z/(1-z)+ (2z)/(z^2-1) cho P=A.B ,P=m TÌM TẤT CẢ CÁC GIÁ trị của m câu 2: cho x lớn hơn 0 tìm giá trị nhỏ nhất của biểu thức N= 4x^2- 3x + 1/(4x) + 2020 các bạn giúp mình với, mình sắp thi rồi
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