已知p在曲线x=2+cosθ y=sinθ上,点Q在曲线x=t-1,y=根号2t上,试求lPQl最小值,并求此时Q点的坐标..根号2t。t也在根号里面
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![已知p在曲线x=2+cosθ y=sinθ上,点Q在曲线x=t-1,y=根号2t上,试求lPQl最小值,并求此时Q点的坐标..根号2t。t也在根号里面](/uploads/image/z/10268109-45-9.jpg?t=%E5%B7%B2%E7%9F%A5p%E5%9C%A8%E6%9B%B2%E7%BA%BFx%3D2%2Bcos%CE%B8+y%3Dsin%CE%B8%E4%B8%8A%2C%E7%82%B9Q%E5%9C%A8%E6%9B%B2%E7%BA%BFx%3Dt-1%2Cy%3D%E6%A0%B9%E5%8F%B72t%E4%B8%8A%2C%E8%AF%95%E6%B1%82lPQl%E6%9C%80%E5%B0%8F%E5%80%BC%2C%E5%B9%B6%E6%B1%82%E6%AD%A4%E6%97%B6Q%E7%82%B9%E7%9A%84%E5%9D%90%E6%A0%87..%E6%A0%B9%E5%8F%B72t%E3%80%82t%E4%B9%9F%E5%9C%A8%E6%A0%B9%E5%8F%B7%E9%87%8C%E9%9D%A2)
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