对于平面内的\(⊙C\)和\(⊙C\)外一点\(Q\),给出如下定义:若过点\(Q\)的直线与\(⊙C\)存在公共点,记为点\(A\),\(B\),设\(k=\dfrac{AQ+BQ}{CQ}\),则称点\(A(\)或点\(B)\)是\(⊙C\)的“\(k\)相关依附点”\(.\)特别地,当点\(A\)和点\(B\)重合时,规定\(AQ=BQ\),\(k=\dfrac{2AQ}{CQ}(\)或\(\dfrac{2BQ}{CQ}).\)已知在平面直角坐标系\(xOy\)中,\(Q(-1,0)\),\(C(1,0)\),\(⊙C\)的半径为\(r\).
\((1)\)如图,当\(r=\sqrt{2}\)时,
\(①\)若\({{A}_{1}}(0,1)\)是\(⊙C\)的“\(k\)相关依附点”,则\(k\)的值为______;
\(②{{A}_{{2}}}(1+\sqrt{2},0)\)是否为\(⊙C\)的“\(2\)相关依附点”\(?\)答:是______\((\)选“是”或“否”\()\);
\((2)\)若\(⊙C\)上存在“\(k\)相关依附点”点\(M\),
\(①\)当\(r =1\),直线\(QM\)与\(⊙C\)相切时,求\(k\)的值;
\(②\)当\(k=\sqrt{3}\)时,求\(r\)的取值范围;
\((3)\)若存在\(r\)的值使得直线\(y=-\sqrt{3}x+b\)与\(⊙C\)有公共点,且公共点是\(⊙C\)的“\(\sqrt{{3}}\)相关依附点”,直接写出\(b\)的取值范围.