9.
设数列\(\left\{ {{a}_{n}} \right\}\)的前\(n\)项的和\({{S}_{n}}\),\({{S}_{n}}\)与\({{a}_{n}}\)的关系是\({{S}_{n}}{=}-{{{a}}_{n}}+1-\dfrac{1}{{{2}^{n}}},n\in {{N}^{*}}\).
\((1)\)求\({{a}_{1}},{{a}_{2}},{{a}_{3}}\)并归纳出数列\(\left\{ {{a}_{n}} \right\}\)的通项\((\)不需证明\()\);
\((2)\)求数列\(\left\{ {{S}_{n}} \right\}\)的前\(n\)项和\({{T}_{n}}\) .