Math Is Fun Forum

sarsalan

Member

Registered: 2008-11-03

Posts: 16

commutative law over intersection

Using the set identities prove the commutative law over intersection.

LuisRodg

Real Member

Registered: 2007-10-23

Posts: 322

Re: commutative law over intersection

Isnt the commutative law a set identity itself?

zunaira

Guest

Re: commutative law over intersection

please send me the answers of these quesions.
Qno1:Using the set identities prove the commutative law over intersection?

Question 2        
Prove that for the sets A, B, and C
(A – B) – C = (A – C) – (B – C)
Using

(i)    Venn diagram
(ii)    Membership table
Question 3                      Let A = {1, 2,3} and B={1,2,3,4}, define a binary relation R from A to B as follows     
R= {(a, b)  A B | a £b}
(i)    Find the order pairs in R.
(ii)    Find domain and range of R.
(iii)    Draw the Directed graph of R.
(iv)    Make the matrix representation of R