Conjuntos
B= { x / x < 1 }
C= { x / 15x - 5 = 0 }
D= { x / -2 ≤ x ≤ 1/4 }
E= { x ∈ U / - 3 < x < 2 }
B= { x / x < 1 }
C= { x / 15x - 5 = 0 }
D= { x / -2 ≤ x ≤ 1/4 }
E= { x ∈ U / - 3 < x < 2 }
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B)
B = {......-2, -1, 0, }
C)
15x - 5 = 0
15x = 5
x = 5/15
C = {1/3}
D)
D = {-2, -1, 0,..... 1/4)
E)
E = {-2, -1, 0, 1}
B= { x / x < 1 }
C= { x / 15x - 5 = 0 } ==> 15x = 5 ==> x = 5/15 ==> x = 0,333.....
D= { x / -2 ≤ x ≤ 1/4 } ==> { -2,-1,0,1/4}
E= { x ∈ U / - 3 < x < 2 } ==> {-2,-1,0,1 }
-3 -2 1/4 5/15 1 2
--------|-------|------|--------|----|-------|-----|---------------------
B U C U D U E = ] - 3 ; 2 [
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B ∩ C ∩ D ∩ E = ] 1/4 ; 5/15 [