4.
若数列\(\{{{a}_{n}}\}\)和\(\{{{b}_{n}}\}\)的项数均为\(m\),则将数列\(\{{{a}_{n}}\}\)和\(\{{{b}_{n}}\}\)的距离定义为\(\sum\limits_{i=1}^{m}{|{{a}_{i}}-{{b}_{i}}|}\) .
\((1)\)求数列\(1\),\(3\),\(5\),\(6\)和数列\(2\),\(3\),\(10\),\(7\)的距离.
\((2)\)记\(A\)为满足递推关系\({{a}_{n+1}}=\dfrac{1+{{a}_{n}}}{1-{{a}_{n}}}\)的所有数列\(\{{{a}_{n}}\}\)的集合,数