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Precalculus 15 Online
OpenStudy (anonymous):

When do i use brackets for writing domain and range?

OpenStudy (anonymous):

Parenthesis means that the value is included and brackets mean it is not.

OpenStudy (anonymous):

really? I thought brackets meant including

OpenStudy (anonymous):

Closed brackets [ ] means the value is included (closed dots, number is defined). Parentheses ( ) means the value is excluded (open dots)

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