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Maths-

open vertical bar table attributes columnalign center center center columnspacing 1em end attributes row 1 w cell w squared end cell row w cell w squared end cell 1 row cell w squared end cell 1 w end table close vertical bar equals

Maths-General

  1. negative 1
  2. 1
  3. 0
  4. 2

    Answer:The correct answer is: 0

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