Toán Lớp 10: A=[-1;4], B=(2,5), C=[4; +∞)
Tìm:
a. A∪B
b. B∩C
c. (B∪C)\A
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Toán Lớp 10: A=[-1;4], B=(2,5), C=[4; +∞)
Tìm:
a. A∪B
b. B∩C
c. (B∪C)\A
Comments ( 2 )
Ta có :
A = [ -1 ; 4 ]
B = ( 2 ; 5 )
C = [4 ; +oo )
a) A uu B = [ -1 ; 5 )
b)B nn C = [ 4 ; 5 )
c) ( B uu C ) \ A = ( 2 ; +oo ) \ [ -1 ; 4 ] = ( 4 ; +oo )