9.
给出下列四个关于数列命题:
\((1)\)若\(\left\{ {{a}_{n}} \right\}\)是等差数列,则三点\(\left( 10,\dfrac{{{S}_{10}}}{10} \right)\)、\(\left( 100,\dfrac{{{S}_{100}}}{100} \right)\)、\(\left( 110,\dfrac{{{S}_{110}}}{110} \right)\)共线;
\((2)\)若\(\left\{ {{a}_{n}} \right\}\)是等比数列,则\({{S}_{m}}\)、\({{S}_{2m}}-{{S}_{m}}\)、\({{S}_{3m}}-{{S}_{2m}}\) \((m\in {{N}^{*}})\)也是等比数列;
\((3)\)等比数列\(\left\{ {{a}_{n}} \right\}\)的前\(n\)项和为\({{S}_{n}}\),若对任意的\(n\in {{N}^{*}}\),点\(\left(n,{S}_{n}\right) \)均在函数\(y={{b}^{x}}+r\) \((b\ne 0,b\ne {1}, b.r\)均为常数\()\)的图象上,则\(r\)的值为\(-{1}\).
\((4)\)对于数列\(\left\{ {{a}_{n}} \right\}\),定义数列\(\left\{{a}_{n+1}-{a}_{n}\right\} \)为数列\(\left\{ {{a}_{n}} \right\}\)的“差数列”,若\({{a}_{{1}}}{=2}\),\(\left\{ {{a}_{n}} \right\}\)的“差数列”的通项为\({{{2}}^{n}}\),则数列\(\left\{ {{a}_{n}} \right\}\)的前\(n\)项和\({{S}_{n}}\) \(={{2}^{n+1}}-2\)
其中正确命题的个数是\((\) \()\)