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interval in math 9.grade
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A=(-6,8] B=[-3,10) Which set is A-B ?
 
(-6,-3)
 
(-6,3]
 
[-6,-3)
 
[-6,-3]
K=[-1,∞) M=(-∞,-1] Which set is K∩M?
 
{-1}
 
∅
 
R
 
[-1,1]
A= (-∞,1] B=(1,∞) Which set is A∪B ?
 
R
 
∅
 
{1}
 
(-1,2)
A=[1,5] B=(3,7] Which set is A∩B ?
 
(3,5]
 
[3,5]
 
[1,3]
 
(3,5)
A=(-2,3] B=(1,5) Which set is A∪B?
 
(-2,5)
 
(-2,5]
 
[-2,5]
 
[-2,5)
A=[0,3) Which set is A'?
 
(-∞,0) ∪ [3,∞)
 
(-∞,3] ∪ [3,∞)
 
(-∞,0] ∪ (3,∞)
 
(0,3]
What is the sum of all integers included in the interval (-3,4)
3
A=❴x: -2≤x<3, x∈R❵ Which one is the interval notation of the above set?
 
[-2,3)
 
(-2,3]
 
(-2,3)
 
[-2,3]
which one is not a half-open interval?
 
(-1,1)
 
[0,∞)
 
[3,5)
 
(2,5]
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