U-union N-intersection..
1. A-(2,3,4,6,8)
B-(1,3,5,6,7)
C-(2,3,9)


find:
A intersection B or A-N-B
B intersection C or B-N-C
C intersection A or C-N-A


2. (x/x is a letter of the word 'rhythm')
(x/x is a vowel letter)
(x/x is a letter of the word mathematics)

Find:

A intersection B or A-N-B
(C-A)intersection B or (C-A)-N-B
(C-B) (A intersection B) or (C-B) (A-N-B)


- this is our assignment...pls answer it immediatly..tnx...

1

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2015-06-07T12:38:18+08:00

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Intersection
             - contains the elements that the sets have in common
Subtraction
             - ex. A - B,  all elements of A are present except the intersection of A and B
1.) 
A-(2,3,4,6,8)
B-(1,3,5,6,7)
C-(2,3,9)

a.) A intersection B = {3, 6}
b.) 
B intersection C = {3}
c.) 
C intersection A = {2, 3}

2.)  
(x/x is a letter of the word 'rhythm') 
(x/x is a vowel letter)
(x/x is a letter of the word mathematics)
Roster method:
         A = {R, H, Y, T, M}
         B = {A, E, I, O, U}
         C = {M, A, H, E, T, I, C, S}
a.) 
A intersection B = { }
     (C-A)    = {A, E, I, C, S}
b.) 
(C-A) intersection B = {A, E, I}                                                                    c.) (C-B) = {M, H, T, C, S}
d.)(A intersection B) = {}
 
2 3 2