leducchibang2000 leducchibang2000
  • 29-12-2022
  • Mathematics
contestada

xét tính đồng biến(bằng định nghĩa) của các hàm số sau trên khoảng đã cho
a) y=f(x)=x²-2x+3 trên khoảng(1;+∞)

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