UnkleRhaukus
  • UnkleRhaukus
\[(1,2)\cap[2,3)=\] @estudier
Meta-math
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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UnkleRhaukus
  • UnkleRhaukus
can you confirm the solution is the empty set?
anonymous
  • anonymous
2 included in 1 and not the other so nothing in common.
ParthKohli
  • ParthKohli
An arbitrary element \(\phi\) will always fulfil the condition \(\phi <2\) in set \((1,2)\). An arbitrary element \(\psi\) will always fulfil the condition \(\psi \ge 2 \) in set \([2,3)\). So, \(\rm \psi \ge 2>\phi\). Therefore, there is no common element.

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More answers

anonymous
  • anonymous
They are not really sets....
ParthKohli
  • ParthKohli
They are. :p
UnkleRhaukus
  • UnkleRhaukus
intervals
ParthKohli
  • ParthKohli
Intervals are sets.
UnkleRhaukus
  • UnkleRhaukus
an interval in set on an infinite number of points
anonymous
  • anonymous
@ParthKohli (1,2) What set is this?
ParthKohli
  • ParthKohli
{1.000000000000.....1, 1.000000......2 ..... 1.99999999999999........9}
anonymous
  • anonymous
Maybe, it wasn't actually defined...
UnkleRhaukus
  • UnkleRhaukus
\[x\in\mathbb R[1
ParthKohli
  • ParthKohli
The interval (1,2) can be interpreted as a set containing numbers between and not including 1 and 2.
Zarkon
  • Zarkon
\[(1,2)=\{x\in\mathbb{R}|1
ParthKohli
  • ParthKohli
Yes, the set builder notation.
UnkleRhaukus
  • UnkleRhaukus
yeah
UnkleRhaukus
  • UnkleRhaukus
thats what i ment @Zarkon
ParthKohli
  • ParthKohli
In this case, we have \(\phi \) instead.\[(1,2) = \{\phi \in \mathbb R |1<\phi <2\}\]Doesn't make a lot of difference either...
UnkleRhaukus
  • UnkleRhaukus
what is phi?
ParthKohli
  • ParthKohli
An arbitrary element in \((1,2)\).
ParthKohli
  • ParthKohli
Or if you're asking it that way, phi is a Greek letter.
UnkleRhaukus
  • UnkleRhaukus
strange choice of dummy variable
ParthKohli
  • ParthKohli
Greece is a country located in the east, precisely the Asian continent.
UnkleRhaukus
  • UnkleRhaukus
i did not know that
UnkleRhaukus
  • UnkleRhaukus
so i was right? \[(1,2)\cap[2,3)=\emptyset\]
ParthKohli
  • ParthKohli
It's actually in Eurasia - Europe.
ParthKohli
  • ParthKohli
Yes, my lad.
UnkleRhaukus
  • UnkleRhaukus
not you
ParthKohli
  • ParthKohli
I wasn't right? I was.
anonymous
  • anonymous
I said u were right back on the second post...
UnkleRhaukus
  • UnkleRhaukus
you dont know which way is east parth
ParthKohli
  • ParthKohli
Eastern Hemisphere. Okay?
UnkleRhaukus
  • UnkleRhaukus
ok
UnkleRhaukus
  • UnkleRhaukus
thanks all,
ParthKohli
  • ParthKohli
You're welcome.

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