Question

Math question..? (integers -- unions)

Answer 1

The first part kind of makes sense. Like I know to combine them, but do I put it in numerical order? And the second part has me beat.

Answer 2

YOU HAVE TO SELECT THE COMMON IN THE 2ND ONE

Answer 3

For second part A and B have only one common element 9. So 9 is the answer

Answer 4

if you have any doubts please ask..:)

Answer 5

Oh okay. Does the first part have to be in numerical order?

Answer 6

Here, A = {3,4,7,9} and B = {8,9,10,11}
So, to get A U B , You just combine all the element of A and B .

=> A U B = {3,4,5,9,8,10,11} .. (You don't write 9 twice 'coz it's repeated .. )



By definition , A intersection B = All the element that are common to both A and B ..

So, A intersection B = {9}

Answer 7

Not necessary. You just need to combine both the sets. That's all.

Answer 8

@Aditi_Singh : Well explained..:)

Answer 9

Okay, that makes sense! That you so much y'all :)

Answer 10

@Champs : =D