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laydygaga1997
2 năm trước
câu 1 : cho CT : y-3 =x ; -2y =x ; y mũ 2 =y CT nào là H /số của x câu 2: y= 15 trên 2x-4 . tìm điều kiện của x để VP có nghĩa câu 3 cho y bằng x mũ 2 +3x + 2x . tính y (-1) ; y(0) ; y (1 phần 2 ) câu 4 cho y =f(x)= ax nhân CMR a. với x1 ; x2 bất kì ta có f (x1+x2) =f(x1) + f(x2) b. với mọi K thuộc Q LÀ (KX) = k nhân f (x)
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