jollysailorbold
What is the solution set of {x | x < -3} ∩ {x | x > 5}?
-all numbers except -3 and 5
-the numbers between -3 and 5
-the empty set
-all real numbers
it's "the numbers between -3 and 5" right?
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jollysailorbold
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wait i mean
all numbers except -3 and 5
hartnn
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no,
x< -3 means numbers like -4,-5,-6,.....
x>5 meanss 6,7,8,9....
do you see any intersection ? common elements ?
jollysailorbold
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it's all numbers except -3 and 5, i read it wrong, sorry :)
hartnn
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first tell me are there any common elements ?
and thats incorrect....
∩ = intersection = common elements.
jollysailorbold
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aw, i thought i was getting the hang of it.
hartnn
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|dw:1358422502288:dw|
jollysailorbold
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empty set, then?
hartnn
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yes!
jollysailorbold
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haha, thanks once again:)
hartnn
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welcome ^_^