1. The relation R in the set { 1,2,3 } given by { (1,2) ,(2,1) } is a) reflexive b) symmetric c) transitive d) equivalence relation
2. If f : R → R be defined as f(x) = ?4,then the function f is a) one-one and onto b) many-oneandonto c) one-one but not onto d ) neither one-one nor onto
3.The number of all possible matrices of order 3 x 3 with each entry 0 or 1 is a) 27 b) 18 c) 81 d) 512
4. Let A be a nonsigular matrix of order 3 x 3 and | adj A|= 25, thena possible value of |A| is a) 625 b) 25 c) 5 d) 125
5. Which of the following x belongs to domain of the greatest integer function f(x) = ? , 0 < x < 3 is not differentiable a) 2 and 3 b) 1 and 2 c) 0 and 2 d) 1 and 3
6. The point of inflection of the function y = ?3 is a) ( 2, 8 ) b) ( 1, 1) c) ( 0, 0 ) d) ( –3, -27 )
7. In a Linear programming problem , the objective function is always a) a cubic function b) a quadratic function c) a linear function d) a constant function
8. A square matrix A is a singular matrix if |A| is –––––––––––––––––––––––––
9. The probability of obtaining an even prime number on each die, when a pair of dice is rolled is ______________________________
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