Solved papers for JEE Main & Advanced JEE Main Paper (Held On 12 May 2012)

done JEE Main Paper (Held On 12 May 2012) Total Questions - 1

• question_answer1) If the sum of the square of the roots of the equation \[{{x}^{2}}-(\sin \alpha -2)x-(1+\sin \alpha )=0\] is least, then \[\alpha \] is equal to     JEE Main Online Paper (Held On 12 May 2012)
  A)
  \[\frac{\pi }{6}\]                                              
  done clear
  B)
                         \[\frac{\pi }{4}\]
  done clear
  C)
                         \[\frac{\pi }{3}\]                                              
  done clear
  D)
                         \[\frac{\pi }{2}\]
  done clear
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