1.已a∈R,直线(1-a)x+(a+1)y-4(a+1)=0过定点P,点Q在曲线X2-XY+1=0上,则PQ过连线斜率范围是?2.P(-1,3)到动直线Y=K(X-2)的距离最大为多少?3.对于任意实数,点(-2,-2)到直线(T+2)X-(1+T))Y-2=0的距离d取值范围是?就
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![1.已a∈R,直线(1-a)x+(a+1)y-4(a+1)=0过定点P,点Q在曲线X2-XY+1=0上,则PQ过连线斜率范围是?2.P(-1,3)到动直线Y=K(X-2)的距离最大为多少?3.对于任意实数,点(-2,-2)到直线(T+2)X-(1+T))Y-2=0的距离d取值范围是?就](/uploads/image/z/5496192-0-2.jpg?t=1.%E5%B7%B2a%E2%88%88R%2C%E7%9B%B4%E7%BA%BF%281-a%29x%2B%28a%2B1%29y-4%28a%2B1%29%3D0%E8%BF%87%E5%AE%9A%E7%82%B9P%2C%E7%82%B9Q%E5%9C%A8%E6%9B%B2%E7%BA%BFX%EF%BC%92-XY%2B1%3D0%E4%B8%8A%2C%E5%88%99PQ%E8%BF%87%E8%BF%9E%E7%BA%BF%E6%96%9C%E7%8E%87%E8%8C%83%E5%9B%B4%E6%98%AF%3F2.P%28-1%2C3%29%E5%88%B0%E5%8A%A8%E7%9B%B4%E7%BA%BFY%3DK%28X-2%29%E7%9A%84%E8%B7%9D%E7%A6%BB%E6%9C%80%E5%A4%A7%E4%B8%BA%E5%A4%9A%E5%B0%91%3F3.%E5%AF%B9%E4%BA%8E%E4%BB%BB%E6%84%8F%E5%AE%9E%E6%95%B0%2C%E7%82%B9%28-2%2C-2%29%E5%88%B0%E7%9B%B4%E7%BA%BF%28T%2B2%29X-%281%2BT%29%29Y-2%3D0%E7%9A%84%E8%B7%9D%E7%A6%BBd%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%98%AF%3F%E5%B0%B1)
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