练习册

  • 练习册
  • 试题
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    题目列表(包括答案和解析)

    当
     
    时，分式
    x+1x-1
    有意义．

    查看答案和解析>>

    当
     
    时，分式
    2x-1
    没有意义．

    查看答案和解析>>

    当
     
    时，分式
    1x-1
    有意义．

    查看答案和解析>>

    当
     
    时，分式
    x2-2x-3x-3
    的值为零．

    查看答案和解析>>

    当
     
    时，分式
    1x-2
    没有意义．

    查看答案和解析>>


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