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Is a line lying in a plane an open or a closed region? |
2013-02-13 |
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pardeep pose la question :
please help with this question on the open and closed intervals ::
Is a line lying in a plane an open or a closed region? my teacher says it is a closed region reasoning out that it contains all it boundary points. please help how is it so?
Harley Weston lui répond. |
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