已知圆C:x^2+y^2-2x-2y+1=0,直线l:y=kx,且l与圆C相交于P、Q两点,点M(0,b),且MP⊥MQ.(Ⅰ)当b=1时,求k的值(Ⅱ)当b∈(1,3/2),求k的取值范围
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![已知圆C:x^2+y^2-2x-2y+1=0,直线l:y=kx,且l与圆C相交于P、Q两点,点M(0,b),且MP⊥MQ.(Ⅰ)当b=1时,求k的值(Ⅱ)当b∈(1,3/2),求k的取值范围](/uploads/image/z/4326891-51-1.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86C%3Ax%5E2%2By%5E2-2x-2y%2B1%3D0%2C%E7%9B%B4%E7%BA%BFl%3Ay%3Dkx%2C%E4%B8%94l%E4%B8%8E%E5%9C%86C%E7%9B%B8%E4%BA%A4%E4%BA%8EP%E3%80%81Q%E4%B8%A4%E7%82%B9%2C%E7%82%B9M%EF%BC%880%2Cb%EF%BC%89%2C%E4%B8%94MP%E2%8A%A5MQ.%EF%BC%88%E2%85%A0%EF%BC%89%E5%BD%93b%3D1%E6%97%B6%2C%E6%B1%82k%E7%9A%84%E5%80%BC%EF%BC%88%E2%85%A1%EF%BC%89%E5%BD%93b%E2%88%88%EF%BC%881%2C3%2F2%EF%BC%89%2C%E6%B1%82k%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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