All India Engineering / Architecture Entrance Examination (AIEEE)

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AIEEE 2009 Maths

 Q. 17. The sum to infinity of the series

1. 6
   
   
2. 2
   
   
3. 3
   
   
4. 4

Sol:  

Answer: (3)

Q. 18. The ellipse x² + 4y² = 4 is inscribed in a rectangle aligned with the coordinate axes, which in turn is inscribed in another ellipse that passes through the point (4, 0). Then the equation of the ellipse is

1. 4x² + 64y² = 48
   
   
2. x² + 16y² = 16
   
   
3. x² + 12y² = 16
   
   
4. 4x² + 48y² = 48

Sol: 

Answer: (3)

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