Solved papers for JEE Main & Advanced JEE Main Paper (Held On 9 April 2014)

done JEE Main Paper (Held On 9 April 2014) Total Questions - 1

• question_answer1) If\[y={{e}^{nx}},\]then\[\left( \frac{{{d}^{2}}y}{d{{x}^{2}}} \right)\left( \frac{{{d}^{2}}x}{d{{y}^{2}}} \right)\]is equal to:   [JEE Main Online Paper ( Held On 09 Apirl  2014  )
  A)
  \[n{{e}^{nx}}\]                                 
  done clear
  B)
  \[n{{e}^{-nx}}\]
  done clear
  C)
  1                                             
  done clear
  D)
  \[-n{{e}^{-nx}}\]
  done clear
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