[Toán 10] Bài khó

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lequang_clhd

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tranvanhung7997

a, B \bigcup_{}^{} C = (-9 ; 7]

b, A \bigcup_{}^{} C = (-9 ; 5)\[1; 5]

c, A \bigcap_{}^{} B = A = (2 ; 5)

d, A \bigcap_{}^{} C = rỗng

e, (A \bigcup_{}^{} C)\B = (-9 ; -3]

f, (B\bigcap_{}^{} C)\A = (-3 ; 1)
 
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