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All India Engineering / Architecture Entrance Examination (AIEEE)

CBSE Guess > AIEEE > AIEEE Papers > 2010 > Mathematics

AIEEE 2010 Mathematics

Q. 10.  be defined by . If f has a local minimum at x = -1 ,
then a possible value of k is.

  1. 0
  3. -1
  4. 1

Sol :

 

Answer : (3)

Q. 11. The number of 3 X 3 non-singular matrices, with four entries as 1 and all other entries as 0, is

  1. 5
  2. 6
  3. at least 7 
  4. less than 4

Sol :

are 6 non-singular matrices because 6 blanks will be filled by 5 zeros and 1 one.

Similarly,  are 6 non-singular matrices.

So, required cases are more than 7.

 Answer: (3)