Solved papers for JEE Main & Advanced JEE Main Solved Paper-2015

done JEE Main Solved Paper-2015 Total Questions - 1

• question_answer1) Let \[\alpha \] and \[\beta \] be the roots of equation \[{{x}^{2}}-6x-2=0.\] If \[{{a}_{n}}={{\alpha }^{n}}-{{\beta }^{n}},\] for \[n\ge 1,\] then the value \[\frac{{{a}_{10}}-2{{a}_{8}}}{2{{a}_{9}}}\]is equal to : [JEE Main Solved Paper-2015 ]
  A)
  3             
  done clear
  B)
  -3
  done clear
  C)
  6                                             
  done clear
  D)
  -6
  done clear
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