若实数x,y满足x-y+1≤0,且x>0,则y/x的取值范围是?(请用线性规划解,
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若实数x,y满足x-y+1≤0,且x>0,则y/x的取值范围是?(请用线性规划解,
![若实数x,y满足x-y+1≤0,且x>0,则y/x的取值范围是?(请用线性规划解,](/uploads/image/z/15269277-21-7.jpg?t=%E8%8B%A5%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3x-y%2B1%E2%89%A40%2C%E4%B8%94x%3E0%2C%E5%88%99y%2Fx%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF%3F%28%E8%AF%B7%E7%94%A8%E7%BA%BF%E6%80%A7%E8%A7%84%E5%88%92%E8%A7%A3%2C)
y>=x+1,y/x>=(x+1)/x=1+1/x,x>0,y/x>1.
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