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doremon.cute321
2 năm trước
Bất phương trình nào sau đây là bậc nhất một ẩn A. 3x >1-2x. В. 3-3>х. С. 2х+ у <1. D. 2x-1 =0. 2.x - 3 35. Tìm điều kiện của bất phương trình 2.x+3 >x+1. C. x* - 3 A. x+-. 3 В. х# D. **. 2.x-3 36. Tìm điều kiện của bất phương trình J6- 3x 2. C. x<2. D. x22. 37. Tập nghiệm của bất phương trình 2–3x0 → x€(2;+). B. f(x)<0 >x €(-0;-2) C. f(x)>0 > x€ (-2;+0). 39. Tìm m để f (x) =(m- 2)x+2m – 1 là nhị thức bậc nhất. D. f(x) =0 x =-2. A. m+2. B. С. т>2. D. m< 2. 1 . m#- [2r –123(x-3) 2-x
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