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Number of subsets of the set A={1,2,3,4}...

Number of subsets of the set A={1,2,3,4} is…………..

A

14

B

15

C

16

D

17

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • The number of subsets of the set A={a_(1),a_(2),………..a_(n)} which contain even number of elements is

    A
    `2^(n-1)`
    B
    `2^(n)-1`
    C
    `2^(n-2)`
    D
    `2^(n)`

  • The number of subsets of the null set phi is…………..

    A
    0
    B
    1
    C
    3
    D
    4

  • If one quarter of all three element subsets of the set A = { a_1 ,a_2,a_3,. . . ,a_n} contains the element a_3 then n=

    A
    10
    B
    12
    C
    14
    D
    none

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    If one quarter of all three element subsets of the set A={a_(1), a_(2), a_(3), ......., a_(n)} is equal to the three element subsets which contains the element az, then n is

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