If and are mutually perpendicular unit vectors, then is equal to :

 

1. 
   

   3

   
   


2. 
   
   
   

   

   
   
   
   


3. 
   

   

   
   


4. 
   

   1

   
   

The distance between the pair of parallel lines x² + 2xy + y² - 8ax - 8ay - 9a² = 0 is :

 

If , then e^x is equal to :

equals :

The value of is equal

The magnetic field of a short magnet at a distance 1 m on the axial line is 1 oersted. At a distance of 2 m on the same line, the intensity in oersted is :

Hey guys,

I'm in much trouble getting no selection anywhere,

MY BITSAT test is on 11th June. So please u all goiitians help me out how to prepare for that..........

i.e tell me what is the difficulty level of the paper, which part to attempt first, how to score in eng. and reasoning...part

PLZzzzzzzzzzzzzzz. help me..........................

UPTU counselling OBC ya SC quota ki rank par hoti hai ya general ranking par.