|x1-1|+(x2-2)²+|x3-3|³+(x4-4)^4+…+|x1999-1999|^1999+(x2000-2000)^2000=0求1/x1x2+1/x2x3+1/x3x4+…+1/x1999x2000的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/13 19:51:36
![|x1-1|+(x2-2)²+|x3-3|³+(x4-4)^4+…+|x1999-1999|^1999+(x2000-2000)^2000=0求1/x1x2+1/x2x3+1/x3x4+…+1/x1999x2000的值](/uploads/image/z/8556754-58-4.jpg?t=%EF%BD%9Cx1-1%EF%BD%9C%2B%EF%BC%88x2-2%EF%BC%89%26%23178%3B%2B%EF%BD%9Cx3-3%EF%BD%9C%26%23179%3B%2B%EF%BC%88x4-4%EF%BC%89%5E4%2B%E2%80%A6%2B%EF%BD%9Cx1999-1999%EF%BD%9C%5E1999%2B%EF%BC%88x2000-2000%29%5E2000%3D0%E6%B1%821%2Fx1x2%2B1%2Fx2x3%2B1%2Fx3x4%2B%E2%80%A6%2B1%2Fx1999x2000%E7%9A%84%E5%80%BC)
xQJ@~ lv$=RH++A*
VI]JMNyg6xЋ,߷;};a7`YM1㓎9x@:JoJ Iۃ\%FǨ`[@\xHhi;"<w7Uiɛ9|4TقGvVA9vO?գi:3aA\TO8
zV;ږAH/??
|x1-1|+(x2-2)²+|x3-3|³+(x4-4)^4+…+|x1999-1999|^1999+(x2000-2000)^2000=0求1/x1x2+1/x2x3+1/x3x4+…+1/x1999x2000的值
|x1-1|+(x2-2)²+|x3-3|³+(x4-4)^4+…+|x1999-1999|^1999+(x2000-2000)^2000=0
求1/x1x2+1/x2x3+1/x3x4+…+1/x1999x2000的值
|x1-1|+(x2-2)²+|x3-3|³+(x4-4)^4+…+|x1999-1999|^1999+(x2000-2000)^2000=0求1/x1x2+1/x2x3+1/x3x4+…+1/x1999x2000的值
根据题意可得:x1=1,x2=2,...,x2000=2000
∴1/x1x2+1/x2x3+1/x3x4+…+1/x1999x2000
=1/(1*2)+1/(2*3)+...+1/(1999*2000)
=(1-1/2)+(1/2-1/3)+...+(1/1999-1/2000)
=1-1/2000
=1999/2000
不懂可追问,有帮助请采纳,谢谢!