| 1 |
A groupoid (S) is called __________ if it is associative in S: |
- A. group
- B. abelian-group
- C. semi-group
- D. associative-group
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| 2 |
A set having no element is called: |
- A. null set
- B. subset
- C. singleton
- D. superset
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| 3 |
If (x - 2, 2) = (3, 2), then: |
- A. x = 5
- B. x = 2
- C. x = -5
- D. x = 3
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| 4 |
If sets A and B are equal then: |
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| 5 |
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| 6 |
If a set is described by listing its elements within brackets is called: |
- A. set builder notation
- B. tabular form
- C. descriptive method
- D. none of these
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| 7 |
If a set is described in words, the method is called: |
- A. tabular form
- B. descriptiveform
- C. set builder notation
- D. non-tabular method
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| 8 |
If set A = {1, 2, 3} and B = {1, 2, 3} then sets A and B are: |
- A. not equal
- B. equal
- C. disjoint
- D. overlapping
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| 9 |
A statement which is true for all possible values of the variables involved in it, is called a: |
- A. tautology
- B. conditional
- C. implication
- D. absurdity
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| 10 |
If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ? |
- A. W
- B. {0}
- C.
- D. none of these
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