Solved papers for JEE Main & Advanced AIEEE Solved Paper-2005

done AIEEE Solved Paper-2005 Total Questions - 2

• question_answer1) If\[{{\cos }^{-1}}x-{{\cos }^{-1}}\frac{y}{2}=\alpha ,\]then\[4{{x}^{2}}-4xy\,\cos \alpha +{{y}^{2}}\] is equal to     AIEEE  Solved  Paper-2005
  A)
  \[-4\text{ }{{\sin }^{2}}\alpha \]     
  done clear
  B)
         \[4\text{ }{{\sin }^{2}}\alpha \] 
  done clear
  C)
         4                             
  done clear
  D)
         \[2\text{ }{{\sin }^{2}}\alpha \]
  done clear
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• question_answer2) If in a\[\Delta ABC,\]the altitudes from the vertices A,B,C on opposite sides are in HP, then sin A, sin B, sin C are in     AIEEE  Solved  Paper-2005
  A)
  HP
  done clear
  B)
  Arithmetico-Geometric Progression
  done clear
  C)
  AP
  done clear
  D)
  GP
  done clear
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