Question 468991

Given; A={1,2,3} B={1,2,3,4,5} and C= {4,5,6,7}

a) A intersection B

The INTERSECTION of two sets is the set of elements which are in both sets.

A intersection B={1,2,3}


b) A union C

The UNION of two sets is the set of elements which are in either set.

A union C={1,2,3,4,5,6,7}

c) B union C={1,2,3,4,5,6,7}


d) (A union B)intersection C={1,2,3,4,5}intersection {4,5,6,7}={4,5}


e) A union (B union C)= {1,2,3} union {1,2,3,4,5,6,7}={1,2,3,4,5,6,7}

f) (A intersection B) intersection C={1,2,3} intersection {4,5,6,7}={  }

g) (A intersection B)union C={1,2,3} union {4,5,6,7}={1,2,3,4,5,6,7}