已知空间三点\(A(0,2,3)\),\(B(-2,1,6)\),\(C(1,-1,5)\),
\((1)\)求以向量\(\overset{\to }{{AB}}\,,\overset{\to }{{AC}}\,\)为一组邻边的平行四边形的面积\(S\).
\((2)\)若向量\(\overset{\to }{{a}}\,\)分别与向量\(\overset{\to }{{AB}}\,,\overset{\to }{{AC}}\,\)垂直,且\(|\overset{\to }{{a}}\,|=\sqrt{3}\) ,求向量\(\overset{\to }{{a}}\,\)的坐标.