{"id":1619,"date":"2024-04-30T11:30:05","date_gmt":"2024-04-30T03:30:05","guid":{"rendered":"http:\/\/jiaohuweike.online\/?p=1619"},"modified":"2024-04-30T11:30:05","modified_gmt":"2024-04-30T03:30:05","slug":"hsyldwt-5-3-4-2-2","status":"publish","type":"post","link":"http:\/\/jhwk.online\/?p=1619","title":{"rendered":"\u4e8c\u9879\u5f0f\u5b9a\u7406\u95ee\u9898\u6c47\u603b"},"content":{"rendered":"\n
<\/div>\n\n\n\n

\u9898\u76ee<\/h4><\/div>\n\n\n\n
1.\u8bbe  (1-2 x)^{2020}=a_{0}+a_{1} x+a_{2} x^{2}+\\cdots+   a_{2020} \\cdot x^{2020}(x \\in \\mathbf{R}) .~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(1) \u6c42  a_{0}+a_{1}+a_{2}+\\cdots+a_{2020}  \u7684\u503c;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(2) \u6c42  a_{1}+a_{3}+a_{5}+\\cdots+a_{2019}  \u7684\u503c;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(3) \u6c42 a_{2}+a_{4}+a_{6}+\\cdots+a_{2020} \u7684\u503c;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(4)(a_{0}+a_{2}+a_{4}+\\cdots+a_{2020} )^2-(a_{1}+a_{3}+a_{5}+\\cdots+a_{2019})^2;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(5) \u6c42  \\left|a_{0}\\right|+\\left|a_{1}\\right|+\\left|a_{2}\\right|+\\cdots+\\left|a_{2020}\\right|  \u7684\u503c;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n\n(6)  a_{1}+2 a_{2}+3 a_{3}+\\cdots+2020 a_{2020} .~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n
\u7b54\u6848<\/summary>\n
<\/p>\n\n\n\n
(1)1;(2)\\frac{1-3^{2020}}{2} ;(3)\\frac{3^{2020}-1}{2};(4)3^{2020};(5)3^{2020};(6)4040.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n<\/details>\n\n\n\n
\n