Solved papers for JEE Main & Advanced JEE Main Online Paper (Held on 9 April 2013)

done JEE Main Online Paper (Held on 9 April 2013) Total Questions - 1

• question_answer1)                                 If each of the lines \[5x+8y=13\] and \[4x-y=13\]contains a diameter of the circle \[{{x}^{2}}+{{y}^{2}}-2({{a}^{2}}-7+11)x-2({{a}^{2}}-6a+6)y\]\[+{{b}^{3}}+1=0,\] then:                   JEE Main Online Paper (Held On 09 April 2013)
  A)
                  \[a=5\] and \[b\notin (-1,1)\]                
  done clear
  B)
                  \[a=1\] and \[b\notin (-1,1)\]                
  done clear
  C)
                  \[a=2\] and \[b\notin (-\infty ,1)\]                
  done clear
  D)
                  \[a=5\] and \[b\in (-\infty ,1)\]                
  done clear
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