October Algebra test G8

اختبار خاص بالمعلم: Shaimaa Ahmed Abd-Fattah
مدة الاختبار: 0:45:00
الوقت المتبقي: -:-:-
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2 ∈ ⋯
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Q ∪ Q`=…
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[ -2 , 5 ] ∪ ] 4 , 6 ] =
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[ 4 , 7 ] - {4 , 7} = ...
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If x = [ -7 , 3 ] , y = [-3 , ∞[ then x-y = [-7 ,-3] and x∩ y= [ -3 , 3]
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] -2 , 1 [ ∩ [ -2 , 1] =
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A=]-∞ , 3[ , B = [-1 ,5] then A∪B =]-∞ , 5] and A∩B = [-1 , 3]
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Q and Q` are disjoint set