Solved papers for JEE Main & Advanced JEE Main Online Paper (Held On 23 April 2013)

done JEE Main Online Paper (Held On 23 April 2013) Total Questions - 1

• question_answer1)                 Let a =Im\[\left( \frac{1+{{z}^{2}}}{2iz} \right),\]where z is any non- zero complex ?complex number.                 The set \[\operatorname{A}=\{a:\left| z \right|1\operatorname{and}z\ne \pm 1\}\] is equal to :     JEE Main Online Paper ( Held On 23  April 2013 )
  A)
                    (-1,1)                  
  done clear
  B)
                                           [-1,1]
  done clear
  C)
                                           [0, 1)                   
  done clear
  D)
                                           (-1,0]
  done clear
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