| 1 |
the set {0,<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">±<b>1,</b></span><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">±2,</span><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">±3,........</span>} is: |
- A. Set of natural numbers
- B. Set of whole numbers
- C. Set of prime numbers
- D. Set of integers
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| 2 |
The Range of R is, if R = {(1,3),(2,2),(3,1),(4,4)}. |
- A. {1,2,4}
- B. {3,2,4}
- C. {1,2,3,4}
- D. {1,3,4}
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| 3 |
If x∈ A and x∈ B, then {x} is equal to . |
- A. A - B
- B. A<sup>c</sup>
- C. A∩ B
- D. B<sup>c</sup>
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| 4 |
The harmonic mean of the observation 0,15,12, is: |
- A. 3.7
- B. 7.3
- C. 6.7
- D. no harmonic mean
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| 5 |
A set with no element is called. |
- A. Subset
- B. Empty set
- C. Singleton set
- D. Super set
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| 6 |
Which of the following is complete description of Real numbers? |
- A. N∪ W = R
- B. O∪ E = R
- C. P∪ Q = R
- D. Q∪ Q' = R
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| 7 |
Collection of distinct objects. |
- A. Subset
- B. Power set
- C. Set
- D. None of the
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| 8 |
A collection of well-defined distinct objects is called. |
- A. subset
- B. Power set
- C. Set
- D. None of these
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| 9 |
If number of elements in set A is 3 and in set B is 4 then number of elements in AxB is: |
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| 10 |
If set a has 3 elements and B has 4 then A x B has __________ elements. |
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