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Can someone help explain the open and closed circles too? And the interval + set notation too lol

Can someone help explain the open and closed circles too? And the interval + set notation-example-1

1 Answer

4 votes

Answer:

open circles: <,>

closed circles: ≤,≥

interval notation: the range of numbers from x

set: used to show interval not.

btw sry for sloppy handwriting, currently using mouse

Can someone help explain the open and closed circles too? And the interval + set notation-example-1
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