All India Engineering / Architecture Entrance Examination (AIEEE)
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AIEEE 2007 Mathematics
Q. 23. 
- 1
- 5
Sol:
Correct choice: (3)
Q. 24. 
Sol:
Correct choice: (2)
Q. 25. If 
are unit vectors and θ is the acute angle between them, then 
is a unit vector for
- Exactly two values of
- More than two values of
- No value of
- Exactly one value of
Sol:
Correct choice: (4)