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            • 1.

              设\((1-x)^{n}=a_{0}+a_{1}x+a_{2}x^{2}+…+a_{n}x^{n}\),\(n∈N^{*}\),\(n\geqslant 2\).

              \((1)\)设\(n=11\),求\(|a_{6}|+|a_{7}|+|a_{8}|+|a_{9}|+|a_{10}|+|a_{11}|\)的值;

              \((2)\)设\(b_{k}= \dfrac{k+1}{n-k}a_{k+1}(k∈N,k\leqslant n-1)\),\(S_{m}=b_{0}+b_{1}+b_{2}+…+b_{m}(m∈N,m\leqslant n-1)\),\(\left| \left. \dfrac{S_{m}}{C\rlap{^{m}}{_{n-1}}} \right. \right|\)的值.

            • 2.

              若\({{(\sqrt[6]{x}+\dfrac{1}{\sqrt[6]{x}})}^{n}}\)展开式中第二、三、四项的二项式系数成等差数列.

              \((1)\)求\(n\)的值;

              \((2)\)此展开式中是否有常数项,为什么?

            • 3.

              已知\(\left(1+x\right){2}^{n+1}={a}_{0}+{a}_{1}x+{a}_{2}{x}^{2}+…+{a}_{2n+1}{x}^{2n+1} \),\(n\in {{\mathbf{N}}^{*}}.\)记\({{T}_{n}}=\sum\limits_{k=0}^{n}{(\ 2k+1\ ){{a}_{n-k}}}\).

              \((1)\)求\(T_{2}\)的值;

              \((2)\)化简\({{T}_{n}}\)的表达式,并证明:对任意的\(n\in {{\mathbf{N}}^{*}}\),\({{T}_{n}}\)都能被\(4n+2\)整除.

            • 4.

              在\((3-x)^{20}(x∈R,x\neq 0)\)的展开式中,已知第\(2r\)项与第\(r+1\)项\((r\neq 1)\)的二项式系数相等.

              \((1)\)求\(r\)的值\(;\)

              \((2)\)若该展开式的第\(r\)项的值与倒数第\(r\)项的值相等,求\(x\)的值.

            • 5.

              若\((x+y-1)^{3}(2x-y+a)^{5}\)的展开式中各项系数的和为\(32\),则该展开式中只含字母\(x\)且\(x\)的次数为\(1\)的项的系数为________.

            • 6.

              设\((2x-1)^{5}=a_{0}+a_{1}x+a_{2}x^{2}+…+a_{5}x^{5}\),

              求值:\((1)a_{0}+a_{1}+a_{2}+a_{3}+a_{4}\);

              \((2)|a_{0}|+|a_{1}|+|a_{2}|+|a_{3}|+|a_{4}|+|a_{5}|\);

              \((3)a_{1}+a_{3}+a_{5}\);

              \((4)(a_{0}+a_{2}+a_{4})^{2}-(a_{1}+a_{3}+a_{5})^{2}\).

            • 7.

              已知\((x{-}\sqrt{3})^{2017}{=}a_{0}x^{2017}{+}a_{1}x^{2016}{+…+}a_{2016}x{+}a_{2017}\),则\((a_{0}{+}a_{2}{+…+}a_{2016})^{2}{-}(a_{1}{+}a_{3}{+…+}a_{2017})^{2}\)的值为______ .

            • 8.

              中国南北朝时期的著作\(《\)孙子算经\(》\)中,对同余除法有较深的研究\(.\)设\(a\)\(b\)\(m\)\((\)\(m\)\( > 0)\)为整数,若\(a\)\(b\)\(m\)除得的余数相同,则称\(a\)\(b\)对模\(m\)同余,记为\(a\)\(=\)\(b\)\((\)\(bmodm\)\().\)若\(a=C_{20}^{0}+C_{20}^{1}·2+C_{20}^{2}·{2}^{2}+...+C_{20}^{20}.{2}^{20} \),\(a\)\(=\)\(b\)\((\)\(bmod\)\()\),则\(b\)的值可以是(    )


              A.\(2011\)      
              B.\(2012\)      
              C.\(2013\)      
              D.\(2014\)
            • 9. 在\((x+y)(x+1)^{4}\)的展开式中\(x\)的奇数次幂项的系数之和为\(32\),则\(y\)的值是 ______ .
            • 10.

              \((1)\)已知 \((1+x)(1-2x)^{6}=a_{0}+a_{1}(x-1)+a_{2}(x-1)^{2}+…+a_{7}(x-1)^{7}\),则\(a_{3}=\)                

              \((2)\)已知\(a > 0,( \dfrac{a}{ \sqrt{x}}-x{)}^{6} \)展开式的常数项为\(15\),则\(∫_{-a}^{a}(x2+x+ \sqrt{1-{x}^{2}})dx= \)                

              \((3)\)已知等差数列\(\{a_{n}\}\)的前\(n\)项和为\(S_{n}\),并且\(a_{2}=2\),\(S_{5}=15a_{2}=2\),\(S_{5}=15\),数列\(\{b_{n}\}\)满足\({b}_{n}=2- \dfrac{n+2}{{2}^{n}} (n∈{N}^{*} )\),记集合\(M=\{n| \dfrac{2{S}_{n}(2-{b}_{n})}{n+2}\geqslant λ,n∈{N}^{*}\} \),若\(M\)的子集个数为\(16\),则实数\(λ \)的取值范围为                  

              \((4)\)已知\(f(x)=|x-2017|+|x-2016|+…+|x-1|+|x+1|+…+x+2017|(x∈R) \),且满足\(f(a^{2}-3a+2)=f(a-1)\)的整数\(a\)共有\(n\)个,\(g(x)= \dfrac{{x}^{2}({x}^{2}+{k}^{2}+2k-4)+4}{(x2+2{)}^{2}-2{x}^{2}} \)的最小值为\(m\),且\(m+n=3\),则实数\(k\)的值为        

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