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            • 1.

              已知等差数列\(\{a_{n}\}\)满足:\(a_{4}=6\),\(a_{6}=10\).

              \((1)\)求数列\(\{a_{n}\}\)的通项公式;

              \((2)\)设等比数列\(\{b_{n}\}\)的各项均为正数,\(T_{n}\)为其前\(n\)项和,若\(b_{1}=1\),\(b_{3}=a_{3}\),求\(T_{n}\).

            • 2. 已知函数\(f(x)= \dfrac {3}{2}x+\ln (x-1)\),设数列\(\{a_{n}\}\)同时满足下列两个条件:\(①a_{n} > 0(n∈N^{*})\);\(②a_{n+1}=f′(a_{n}+1)\).
              \((\)Ⅰ\()\)试用\(a_{n}\)表示\(a_{n+1}\);
              \((\)Ⅱ\()\)记\(b_{n}=a_{2n}(n∈N^{*})\),若数列\(\{b_{n}\}\)是递减数列,求\(a_{1}\)的取值范围.
            • 3.

              已知\(-9\),\(a_{1}\),\(a_{2}\),\(-1\)成等差数列,\(-9\),\(b_{1}\),\(b_{2}\),\(b_{3}\),\(-1\)成等比数列 ,则\(b_{2}(a_{1}+a_{2})\)等于\((\)    \()\)

              A.\(30\)          
              B.\(-30\)           
              C.\(±30\)       
              D.\(15\)
            • 4.
              已知等差数列\(\{a_{n}\}\)满足\(a_{1}+a_{2}=10\),\(a_{4}-a_{3}=2\).
              \((\)Ⅰ\()\)求\(\{a_{n}\}\)的通项公式;
              \((\)Ⅱ\()\)设等比数列\(\{b_{n}\}\)满足\(b_{2}=a_{3}\),\(b_{3}=a_{7}\),求数列\(\{b_{n}\}\)的前\(n\)项和.
            • 5.

              已知 \(\{{a}_{n}\} \) 为等差数列,前\(n\)项和为 \(S_{n}(n\)\(∈N*\)\()\) \(\{{b}_{n}\} \) 是首项为\(2\)的等比数列,且公比大于\(0\), \(b_{2}+b_{3}=12\)  \(b_{3}=a_{4}-2a_{1}\)  \(S_{11}=11b_{4}\) 

              \((\)Ⅰ\()\)求 \(\{{a}_{n}\} \) \(\{{b}_{n}\} \) 的通项公式;

              \((\)Ⅱ\()\)求数列 \(\{a_{2n}b_{2n-1}\}\) 的前\(n\)项和 \((n\)\(∈N*\)\()\)

            • 6.
              设数列\(\{a_{n}\}\)的前\(n\)项和为\(S_{n}\),若对任意的正整数\(n\),总存在正整数\(m\),使得\(S_{n}=a_{m}\),则称\(\{a_{n}\}\)是“\(H\)数列”.
              \((1)\)若数列\(\{a_{n}\}\)的前\(n\)项和为\(S_{n}=2^{n}(n∈N^{*})\),证明:\(\{a_{n}\}\)是“\(H\)数列”;
              \((2)\)设\(\{a_{n}\}\)是等差数列,其首项\(a_{1}=1\),公差\(d < 0\),若\(\{a_{n}\}\)是“\(H\)数列”,求\(d\)的值;
              \((3)\)证明:对任意的等差数列\(\{a_{n}\}\),总存在两个“\(H\)数列”\(\{b_{n}\}\)和\(\{c_{n}\}\),使得\(a_{n}=b_{n}+c_{n}(n∈N^{*})\)成立.
            • 7.

              在数列\(\{a_{n}\}\),\(\{b_{n}\}\)中,已知\(a_{1}=0\),\(a_{2}=1\),\(b_{1}=1\),\(b_{2}=\dfrac{1}{2}\),数列\(\{a_{n}\}\)的前\(n\)项和为\(S_{n}\),数列\(\{b_{n}\}\)的前\(n\)项和为\(T_{n}\),且满足\(S_{n}+S_{n+1}=n^{2}\),\(2T_{n+2}=3T_{n+1}-T_{n}\),其中\(n\)为正整数.

              \((1)\) 求数列\(\{a_{n}\}\),\(\{b_{n}\}\)的通项公式.

              \((2)\) 问:是否存在正整数\(m\),\(n\),使得\(\dfrac{T_{n{+}1}\mathrm{{-}}m}{T_{n}\mathrm{{-}}m} > 1+b_{m+2}\)成立\(?\)若存在,求出所有符合条件的有序实数对\((m,n);\)若不存在,请说明理由.

            • 8.

              等比数列\(\{a_{n}\}\)中,已知\(a_{1}=2\),\(a_{4}=16\).

              \((1)\)求数列\(\{a_{n}\}\)的通项公式;

              \((2)\)若\(a_{3}\),\(a_{5}\)分别为等差数列\(\{b_{n}\}\)第\(3\)项和第\(5\)项,求数列\(\{b_{n}\}\)的通项公式及前\(n\)项和\(S_{n}\).

            • 9. 定义“规范\(01\)数列”\(\{a_{n}\}\)如下:\(\{a_{n}\}\)共有\(2m\)项,其中\(m\)项为\(0\),\(m\)项为\(1\),且对任意\(k\leqslant 2m\),\(a_{1}\),\(a_{2}\),\(…a_{k}\)中\(0\)的个数不少于\(1\)的个数\(.\)若\(m=4\),则不同的“规范\(01\)数列”共有\((\)   \()\)
              A.\(18\)个
              B.\(16\)个
              C.\(14\)个
              D.\(12\)个
            • 10.
              已知等差数列\(\{a_{n}\}\)满足\(2a_{3}-a \;_{ 8 }^{ 2 }+2a_{13}=0\),且数列\(\{b_{n}\}\) 是等比数列,若\(b_{8}=a_{8}\),则\(b_{4}b_{12}=(\)  \()\)
              A.\(2\)
              B.\(4\)
              C.\(8\)
              D.\(16\)
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