## ikoreanx3 Group Title Find A u B and A (upside down u sign) B for Set A and B A= {40,35,45,5}, B= {1-,30,15} A u B = ? or A u B is the empty set A (upside down u sign) B A (upside down u sign) B is the empty set HELP!!!!! one year ago one year ago

1. UnkleRhaukus Group Title

The union of sets is the set that contains all the elements in the first set and the second set The intersection of sets is the set of elements that appear in both sets for example: if $$X=\{a,b,c\}$$ and $$Y=\{c,d,e\}$$ the ∪nion of $$X$$ and $$Y$$ is $$X\cup Y=\{a,b,c\}\cup\{c,d,e\}=\{a,b,c,d,e\}$$ The i∩tersectio∩ of $$X$$ and $$Y$$ is $$X∩Y=\{a,b,c\}∩\{c,d,e\}={c}$$

2. ikoreanx3 Group Title

So, do i use your example to solve >< sorry i never learned this

3. UnkleRhaukus Group Title

$A= \{40,35,45,5\},\quad B= \{1-,30,15\}$ $A \cup B = ?$

4. UnkleRhaukus Group Title

...

5. ikoreanx3 Group Title

A U B = {40,35,45} U {45,30,15} ?

6. iforgot Group Title

EXAMPLE NOT YOUR MATH PROBLEM intersection|dw:1368600603756:dw| WHAT HAPPENS TO INTERSECT C, D, E, F EVERY THING THAT HAPPENS TO INTERSECT IN THE AREA DENOTED BY AREA MARKED ( a) IS THE INTERSECTION OF C, D, E, F UPSIDE DOWN U

7. ikoreanx3 Group Title

i dont get that

8. ikoreanx3 Group Title

oh ok...

9. ikoreanx3 Group Title

So, what I got as an answer is it correct? Do I just plug what is a,b,c, d...etc?

10. jishan Group Title

AUB={1,-30,15,35,45,40,5}

11. ikoreanx3 Group Title

its 10...

12. jishan Group Title

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13. jishan Group Title

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14. UnkleRhaukus Group Title

$A= \{40,35,45,5\},\quad B= \{1-,30,15\}$ $A \cup B = \{40,35,45,5\}\cup\{1-,30,15\}=$

15. UnkleRhaukus Group Title

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16. jishan Group Title

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17. jishan Group Title

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