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HuyenTit
2 năm trước
Bài 3: Cho đơn thức A = (-3/4.x^2.y^3.z).(-16/9.xyz^4) a) Thu gọn đơn thức A. b) Xác định hệ số và bậc của đơn thức A. c) Tính giá trị của A tại x = 3; y = 1; z = -1
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