• azeez adisa square root
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    what is the square root of............................-81
    30 October 2010Comment
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    • andy chuks Square root of -81
      /-81 = /-1 x 81
      = /-1 x /81
      = /-1 x 9
      Note square root of -1 is a complex number and is denoted by i,
      Therefore the Answer
      = i x 9
      = 9i

      Like It1 Unlike It0 30 October 2010