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in rule method the null set is resrese...

in rule method the null set is resresented by

A

`{}`

B

`phi`

C

`{x:x=x}`

D

`{x:x ne x}`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • In rule method the null set is represented by

    A
    { }
    B
    `phi`
    C
    `{x : x = x}`
    D
    `{x : x ne x}`

  • Consider the following statements : 1. The null set is a subset of every set. 2. Every set is a subset of itself. 3. If a set has 10 elements, then its power set will have 1024 elements. Which of the above statements are correct?

    A
    1 and 2 only
    B
    2 and 3 only
    C
    1 and 3 only
    D
    1, 2 and 3

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    A
    horizontal component of earth's magnetic field is zero
    B
    horizontal component of earth's magnetic field is equal to the magnetic field of the bar magnet.
    C
    intensity of earth's magnetic field is zero.
    D
    intensity of earth's magnetic field is equal to the magnetic field of the bar magnet.

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