| 1 |
A subset of A x A is called.................. in A. |
- A. Set
- B. Relation
- C. Function
- D. Info function.
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| 2 |
The relation {(1,2),(2,3),(3,3)(3,4)} is. |
- A. Onto function
- B. Into function
- C. Not a function
- D. One-One function.
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| 3 |
The Range of R<div>={(1,3),(2,2),(3,1)(4,4)} is.</div> |
- A. {1,2,4}
- B. {3,2,4}
- C. {1,2,3,4}
- D. {1,3,4}
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| 4 |
If f is a function from A to B, then f is one - one function if: |
- A. Range f≠ A
- B. Range f = B
- C. Dom f = A
- D. Second element of all ordered pairs contained in f is not repeated.
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| 5 |
If A⊆ B then A⋃ B = __________ |
- A. A
- B. B
- C. ∅
- D. None of these
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| 6 |
If R= { (a,2),(b,3),(c,3) }, then Dom R = ________________ |
- A. {1,2}
- B. {1,2,3}
- C. {a,b,c}
- D. {a,c}
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| 7 |
Which of the following is De-Morgan's law? |
- A. (A∪ B)∪ C = A∪ ( B∪ C)
- B. (A∩B)<sup>C</sup>= A<sup>c</sup>∪ B<sup>c</sup>
- C. A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)
- D. A∩(B∪ C) = (A∩B)∪(A∩C)
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| 8 |
If union and intersection of two sets are equal then sets are..............sets. |
- A. Disjoint
- B. Overlapping
- C. Equal
- D. Super
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| 9 |
E - O = .................. |
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| 10 |
N∩ W = .................. |
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