What is the solution set of {x | x < -5} ∩ {x | x > 5}? all numbers less than -5 and greater than 5 the numbers between -5 and 5 the empty set all real numbers
What's your best guess?
Phi
the first choice
x < -5 so you know what that and this means x > 5 right? Do you know what the ∩ means?
Phi
The ∩ symbol is the key here... it means and. You decided on this right? "all numbers less than -5 and greater than 5" Tell me one number that is less than -5 AND greater than 5.
yeah I think its the first one but not sure, I am not good with these
Reread my above post. Especially the last line.
@Tiffany6500 i'll give you a hint: Phi
tell me some person whose height is less than 5 feet AND more than 6 feet
thats same as the agent's question... the point is this :- u cannot say something is blue and green at the same time. a thing is blue, or green. it cannot be both blue and green at the same time.
``` Tell me one number that is less than -5 AND greater than 5. ``` a number is less than -5 or greater than 5 or equal to 5 it cannot be all 3 at the same time.
ok
so what can we conclude ? :)
u need to see it for urself, explaining it more wud oly complicate things hmm
empty set?
Try to tell us a number that is less than -5 AND greater than 5.
@Kainui I don't get why you were saying phi. The symbol isn't a phi, and doesn't really look that much like one (maybe if you rotated it)
@agent0smith I never said anything about phi.
thanks for the help
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