课堂上老师给大家出了这样一道题:当x=3,或x=999,或x=0.001时,求代数式x2-2x+1/ x2-1÷2x-2/x+1 的值.小玲一看,说:“太复杂了,怎么算呢?”你能帮小玲解决这个问题吗?请你写出具体过程.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 00:38:12
![课堂上老师给大家出了这样一道题:当x=3,或x=999,或x=0.001时,求代数式x2-2x+1/ x2-1÷2x-2/x+1 的值.小玲一看,说:“太复杂了,怎么算呢?”你能帮小玲解决这个问题吗?请你写出具体过程.](/uploads/image/z/597768-24-8.jpg?t=%E8%AF%BE%E5%A0%82%E4%B8%8A%E8%80%81%E5%B8%88%E7%BB%99%E5%A4%A7%E5%AE%B6%E5%87%BA%E4%BA%86%E8%BF%99%E6%A0%B7%E4%B8%80%E9%81%93%E9%A2%98%3A%E5%BD%93x%3D3%2C%E6%88%96x%3D999%2C%E6%88%96x%3D0.001%E6%97%B6%2C%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8Fx2-2x%2B1%2F+x2-1%C3%B72x-2%2Fx%EF%BC%8B1+%E7%9A%84%E5%80%BC.%E5%B0%8F%E7%8E%B2%E4%B8%80%E7%9C%8B%2C%E8%AF%B4%EF%BC%9A%E2%80%9C%E5%A4%AA%E5%A4%8D%E6%9D%82%E4%BA%86%2C%E6%80%8E%E4%B9%88%E7%AE%97%E5%91%A2%3F%E2%80%9D%E4%BD%A0%E8%83%BD%E5%B8%AE%E5%B0%8F%E7%8E%B2%E8%A7%A3%E5%86%B3%E8%BF%99%E4%B8%AA%E9%97%AE%E9%A2%98%E5%90%97%3F%E8%AF%B7%E4%BD%A0%E5%86%99%E5%87%BA%E5%85%B7%E4%BD%93%E8%BF%87%E7%A8%8B%EF%BC%8E)
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