Solved papers for JEE Main & Advanced JEE Main Paper (Held on 7 May 2012)

done JEE Main Paper (Held on 7 May 2012) Total Questions - 1

• question_answer1) If\[f(y)=1-(y-1)+{{(y-1)}^{2}}-{{(y-1)}^{3}}\]\[+...-{{(y-1)}^{17}},\]then the coefficient of \[{{y}^{2}}\] in it is   JEE Main Online Paper (Held On 07 May 2012)
  A)
  \[^{17}{{C}_{2}}\]                                           
  done clear
  B)
  \[^{17}{{C}_{3}}\]
  done clear
  C)
  \[^{18}{{C}_{2}}\]                                           
  done clear
  D)
  \[^{18}{{C}_{3}}\]
  done clear
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