Set A is the integers from 1 to 9. Set B is the even integers from 1 to 10. Find B-A, A union B, and A intersect B.

Question

This is a question involving Set Operations.

Answer 1

I have forgotten all this, but..

A is {1, 2, 3, 4, 5, 6, 7, 8, 9}

B is {2, 4, 6, 8, 10}

Find B-A: {2, 4, 6, 8, 10} - {1, 2, 3, 4, 5, 6, 7, 8, 9} = {1, 3, 5, 7, 9}

A union B: {1, 2, 3, 4, 5, 6, 7, 8, 9} U {2, 4, 6, 8, 10} = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

A intersect B: {2, 4, 6, 8}

 

You better check with a friend..