Home/ Questions/Q 342705
Next
In Process
Bhairavi Raman
Asked: 2022-11-04T17:34:53+05:30 In:

The universal set U is the set of all odd numbers less than 20 and set A = {x : x is an odd multiple of 3 and x < 20}. Find complementary set A'.
1. A’ = {1, 5, 11, 13, 17, 19}
2. A’ = {1, 5, 7, 11, 13, 17, 19}
3. A’ = {1, 19}
4. A’ = {1, 2, 5, 7, 8, 11, 13, 16, 17, 19}

The universal set U is the set of all odd numbers less than 20 and set A = {x : x is an odd multiple of 3 and x < 20}. Find complementary set A'.
1. A’ = {1, 5, 11, 13, 17, 19}
2. A’ = {1, 5, 7, 11, 13, 17, 19}
3. A’ = {1, 19}
4. A’ = {1, 2, 5, 7, 8, 11, 13, 16, 17, 19}
Leave an answer

Leave an answer

Browse

1 Answer

  1. Correct Answer – Option 2 : A’ = {1, 5, 7, 11, 13, 17, 19}

    Concept:

    If U is a universal set and A be any subset of U then the complement of A is the set of all members of the universal set U which are not the elements of A.

    It is denoted by A’

    A’ = U – A

    Calculation:

    U = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19}

    A = {3, 9, 15}

    A’ = U – A = {1, 5, 7, 11, 13, 17, 19}

    • 0